Copy of a newspaper article dated 7/1/1997. Photo shows a photo of a mine. Printed under the photo is: The as yet unidentified Bendigo mine with the unusual equipment. In the photo is the poppet head, chimney, buildings and some gum trees. Written at the top of article is: This mine is similar to the New Carshalton Mine Approx 1934 off Sparrow Hawk Road Long Gully. Dorrie Crossley's Father Ben Williams was the Manager. This is the Don Mine, off Top end Sparrowhawk Road Long Gully.bendigo, history, long gully history group, the long gully history group - the don mine, carshalton mine, dorrie crossley, ben williams, matthew o'sullivan

140 Loose pages titled The Bendigo Saleyards Economic Viability Study. Report written by Kate Millard on behalf of the Bendigo Development Committee Inc. Contents include: Chapter 1 - Background Information, Chapter 1 - Present Operations at the Saleyards, Chapter 3 - Economic Factors, Chapter 4 - Environmental Factors, Chapter 5 - Selling Techniques, Chapter 6 - Employment Study, Management and Sundry Issues, Chapter 7 - Survey of Farmers and Saleyard Users in the 'Catchment Area', and Chapter 8 - Recommendations of the Report. Includes diagrams and maps. Recommendations printed on dark yellow paper.bendigo, council, cattle markets, bendigo saleyards collection - the bendigo saleyards economic viability study, bendigo development committee inc., kate millard, loddon campaspe planning authority, street, ryan and associates, bendigo city council, strathfieldsaye shire council, department of industry technology & resources, national library of australia, meldrum burows & partners, core wilson sayer, town planning appeals panel, ces, victorian farmers and graziers association, stock agents association, department of agriculture, department of industry technology & resources, department of conservation forests and land, cr jock comini, rca depot, wellsford rifle range, bendigo airport, bendigo field naturalists club, mr david kennedy, mr john brumby, mr john radford, neil o'keefe, bendigo east progress association, bendigo east traders, trades hall council, mr tom uren, mr frank wilkes, mr bruce reid, mr k i m wright, mr e t ebery, bendigo pastoral council of the vfga, victorian meatworks association, bendigo stock & station agents association, rutlands transport, mr don pickles, country abattoirs & wholesalers association association of victoria, meat and allied trade federation of australia, bendigo saleyards advisory committee, bendigo residents & ratepayers association, a h & n graham, mrs p unmack australian bureau of statistics, mr lloyd houlden, cr c rodda, mr jolly, mr tony milanese, dr robert carter, university of melbourne, bendigo college of tafe, t matthews, a s & r d rutland, john kerr, j talbot, g l o'sullivan, penney & lang pty ltd, graeme pickering, pickhall j w & sons, r a plant, w k schmidt, t j vick, k & j wignall, a e wright, g chapman, a j gillies, p g & m m harris, ian r hollingsworth, b kennedy, s letcher, s & d k letcher, p m llewellyn, l g mason, boyer r t, connally m f, kennedy & mortlock, nevins j p, r w johnstone, w j keith, b d kelly, notman r, pitts a j & c a, pitts mervyn l & co, rowe w o, warren k m, associated stock & station agents, dalgety farmers ltd, elders dsm estates, ellis nuttall & co, gallagher g d, hamilton real estate, mcgregor ralph h & co, mckean w & co, miller turner livestock co, vains e m & co, victorian producers, hill m j & co, bennetts meats, comell bros, davis b & d, hardwick g f & v c, penney & lang p/l, tendercut meats, northern seed supply co, bendigo fertilizers, agri business pty ltd, agrilink consulting group pty ltd, acil aust pty ltd, mcgowan & associates, chapman w c, talbot e j, mcculloch w & sons pty ltd, k v equipment, commercial egg producers assoc co-op, monsanto aust ltd, balmer bryan r, barry i j, bath l, clarke b j, treacy k m, turner j m, bendigo mower serv pty ltd, everlast concrete tank tyltd, wicks bros, canvas goods, don mcarthur, bendigo communications, transcom, emdell pty ltd, epsom pharmaceutical supplies, sandhurst fencing pty ltd, arnolds gates & fencing, r furniss, carne neville, awa & unicla, ajm refrigeration, bendigo concrete sawing service, hamilton r j, hearpes t w, j e brown, campey dr a r, fyffe j j, kangaroo flat vet clinic, ottrey k e, bendigo sprinkler installations, milnes irrigation, onga pumpshop, barastoc products, bush's produce stores, epsom produce, k m m pty ltd, bendigo grain co, eaglehawk chaff mills, grain elevators board dept, bonneys pest control, knights pest control, brown wk & l d, bendigo sewerage authority, bendigo water board, aci computer services, leham donald, a e hueffer & associates, wolmoke planners, p langley, mr ken strachan, mr evan jones, mr peter byrnes, mr wayne street, street ryan & associates

Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated the obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period. 'Horrocks' saline infusion apparatus. Consists of white, metal lidded oval shaped case [169.1], containing a gauze insert, a glass intravenous drip chamber [169.2], straight intravenous needle [169.3], wire insert for the needle [169.4] and rubber tubing [169.5]. Inscribed inside box, "Down Bros., St Thomas Street, Borough of London."hydration

Ergot aseptic was used to stimulate uterine contractions after labour to expel the placenta. Pitocin was also used for this but could also be used during labour to quicken and stimulate the labour process. Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated the obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period. Box, with lid, labelled "CLASEPTIC AMPOULES/ERGOT ASEPTIC", Parke, Davis & Co, Sydney, manufactured February 1952. Within the box are three smaller boxes containing glass ampoules of "Ergot Aseptic" and two boxes containing ampoules of Pitocin.obstetric delivery

Scales like these were used to weigh babies.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated the obstetric bag and its contents to the College in 1999. The gladstone bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period. Set of small, portable spring balance scales. With case/enclosure.infant care

Used in surgery. Made from silkworms.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated the obstetric bag and its contents to the College in 1999. The gladstone bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Round metal tin containing silkworm gut. Tin is painted pink, with a yellow label affixed to the lid bearing a central image of a red cross. Tin is labelled 'MILNE'S/SILKWORM/GUT.' Tin contains a ring of eighteen strands of silkworm gut tied with fine hat elastic, and one additional ring of silkworm gut. surgery

Used to cut the umbilical cord during obstetric delivery.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated the obstetric bag and its contents to the College in 1999. The gladstone bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Small pair of stainless steel scissors with flanged shaft. American pattern. The number '2' is inscribed on inner aspect on both arms of the scissor.'2'obstetric delivery

Dr. Curt Schimmelbusch (1860-1895), a German physician, designed his original mask around 1889 while an assistant surgeon. Surgical assistants were often assigned the task of delivering the anesthetic. During anesthesia it was not uncommon for ether and chloroform to get onto the patient’s skin, causing irritation. Chloroform can even cause burn-like reactions. Schimmelbusch designed the rim of his mask so that both sides curve away from the patient’s face to form a kind of trough. He intended the trough-like rim to collect excess anesthetic that would otherwise have trickled onto the patient’s face. To anesthetize a patient, gauze was stretched over the metal bars and fastened in place by the hinge. The mask was placed over the patient’s nose and mouth, and the anesthetic was applied in drops or lightly poured onto the gauze so that the patient breathed in evaporated anesthetic as well as air. This type of mask is sometimes still used today for ether anesthesia in developing countries when other means are not available. (Wood Library Museum of Anesthesiology) This particular object is a modified version of Schimmelbusch's design, known as Chadborn's modification.Oval shaped chromium plated mask with two metal strips linked front to back and side to side to create a dome. An oval shaped mobile wire frame is attached to the lower part of the mask by a hinge at the back, approximately two inches from the lip of the metal handle. A "U" shaped bit of metal is attached to the front of the mask which acts as a clip to fasten the wire frame to the lower section of the mask.anaesthesia

A mouth gag was used when required to assist in the administration of anaesthesia to a patient. It is used to keep the patient's mouth open, and could also be used for oral surgery or airway management. This particular mouth gag is known as a Doyen's type.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated the obstetric bag and its contents to the College in 1999. The gladstone bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Stainless steel mouth gag. Design of item resembles a pair of scissors, but with a foot at the end of each blade and a ratchet attached to keep the device open.anaesthesia

This type of steriliser was in use from approximately 1907 onward. Designed for surgeons who frequently moved from hospital to hospital. The body and lid of the steriliser were made from one continuous piece of metal to produce a germ-free surface. Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Metal instrument steriliser. Consists of a rectangular metal container with lid, an internal metal tray, and two spirit burners. The lid has a small wire handle at either end. The internal tray also had two handles and in perforated with holes to allow for drainage. The upper edge of each burner has a series of eighteen holes in the rim. disinfection

Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Wooden handled brush with pig hair bristles. With oval shaped metal case consisting of lid and base.disinfection

This type of string, or twine, was frequently used by obstetricians to tie the umbilical cord after the delivery of a baby. Thicker string was favoured because there was less chance of cutting through the soft cord tissue surrounding the umbilical vein. Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Brown string, possibly made of hemp, in two separate lengths. obstetric delivery

These type of safety pins were commonly used in hospitals between 1930- 1960. Pins such as these were advertised for sale as "Hospital and Sick Room Sundries" and were generally supplied in boxes of 12 dozen (144). The pins were supplied in sizes ranging from 0 to 6 - the pins catalogued here are sizes 4,5, and 6. Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Three nickel plated safety pins (.1 - .3) of differing sizes. .1 is size 4, .2 is size 5, and .3 is size 6.

The provenance and use of these items is uncertain, but they are possibly part of portable steriliser or could have been used as abdominal binder holders.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Two metal clamps. Each clamp consists of a central metal stem, with oval shaped handles at each end of the clamp. One clamp is slightly longer than the other.

Used for the removal of mucus, chiefly, from newborn infants. The top section of the chamber in the evacuator acted as a receptacle for wool to absorb any excess overflow of fluid/mucus. The lower section of the chamber collected the aspirated fluid. Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Metal evacuator with wire introducer. Evacuator has a rounded middle chamber, which is divided into two sections. Proximal end of evacuator is curved to approximately 60 degrees and has two small holes in the end. Introducer is a straight piece of wire attached to a flanged head, with a small, serrated edge. obstetric delivery

The metal probe in this set (.6) was used to puncture superficial skin blisters or eruptions and to probe suspected pus filled wounds. The Mayo scissors (.7) was (and still is) part of all major and minor suturing sets. It is also used in general theatres.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Pocket dressing case containing surgical tools. Case [185.1] is made of cream household chamois, with two end flaps and small overlapping front piece to indicate the front of the case. Middle of the case has a strip of chamois divided into nine sections to hold the instruments. Tools contained in the case are: straight Spencer Wells artery forceps x2 [185.2,185.3], Allis box jointed tissue forceps x2 [185.4,185.5], straight probe [185.6], curved Mayo scissors [185.7], straight dissecting forceps [185.8], catheter (female) [185.9], straight McPhail needle holder [185.10]. Artery forceps 185.2 are stamped with '19' on both inner arms. Tissue forceps 185.4 are stamped with "2" on inner arm. Tissue forceps 185.5 are stamped with "8" on inner arm. Mayo scissors 185.7 are marked with '"1". Dissecting forceps 185.8 are marked with "1".surgery

Perforators were used to pierce and empty the skull in craniotomy.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Simpson's perforator. Instrument consists of two straight, pointed blades with screw joint, and a spring loaded insert. Also includes a connecting spring bar at top of handle with three hinge joints. Handles are textured for grip.destructive instruments

Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Metal obstetric tool. Stainless steel rod with rounded large blunt hook at one end and crotchet hook at the other.destructive instruments

Prior to the 1900s, complicated births, particularly where there was a disproportion between the size of the woman’s pelvis and the foetus’ head, often meant the death of the baby and the mother. Instruments for removing a dead or ailing foetus from within the mother were used to attempt to save the mother’s life. The cranioclast, first invented by Dr. James Simpson in the mid-19th century and later redesigned by others, was used for fetal destruction and removal. Fundamentally a strong pair of forceps, the cranioclast was used to crush the skull, decreasing its diameter. In some cases, this would allow normal uterine contractions to expel the foetus; in others, the physicians would use an obstetrical hook to pull the body out of the mother. Doctors disagreed as to the pelvic diameter that would necessitate this drastic intervention, but generally found that 3 to 3.5 inches was the smallest size through which a living infant could pass. Equally of debate was the pelvic size through which the dead fetus could be extracted. When vaginal extraction was deemed unadvisable, Caesarian section would be performed. As caesarean section became safer and more common with the advent of anaesthetics and antiseptic techniques, the use of cranioclasts and obstetrical hooks diminished. (Museum of Health Care, Kingston) Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Hinged metal tool with bakelite handles at one end and serrated teeth at other end. The instrument is in two sections. The right or upper blade has a black bakelite handle. There are two screws on the inside of the handle, 5.5cm apart. In the centre of the blade is a screw notch in the shape of a small horseshoe. On the inner side of the blade is a depression extending most of the length. The left, or lower, blade also has a black bakelite handle. There are two screws on the inside of the handle approximately 6cm apart. Mobile metal clasps in the shape of an 'S' , with three serrations, is attached to the distal end of the handle, which enables the blades to be opened or closed. destructive instruments

Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Mask is made up of several layers of muslin gauze sewn together with cotton tape. The ends of the tape were used to tie the mask to the doctor's face covering the nose and mouth.surgery

Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Small amber coloured glass bottle used to store iodine. Bottle has a clear glass stopper.antiseptic

The use of chloroform as an anaesthetic for humans was first demonstrated by Edinburgh surgeon James Young Simpson in 1847. It was used as an anaesthetic in the 19th and early 20th centuries. Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Amber glass bottle (empty) with clear glass stopper. Bottle carries its original label which "W.J. Bush & Co. Ltd. London ... Chloroform.."". On the base is the number "12" and "AS 9A"anaesthesia

To use this tape, the tube would be broken in half using cat-gut breakers.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Glass vial, containing silk umbilical tape [193.2] in sterile solution. The tape is wound around a flat spool.obstetric delivery

Tanned or chronic catgut came from top quality catgut (fat free). A hardening process was then applied to the muscle durations. The process was introduced and perfected by the firm of Mersons of Edinburgh, makers of sterile surgical ligatures in the early 1930s. Once processed the catgut was preserved in an iod-asceptic preserving spirit and hermetically sealed in glass tubes. It was completely sterile and ready for immediate use. The length of the catgut in each tube was five feet, or 2.5m, and could be wound onto glass winders in assorted colours.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Two glass vials [195.1,.3] with catgut number three "Ethicon" [195.2,.4] in sterile solution. Vials are moulded and sealed at both ends.obstetric delivery

Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Round glass bottle [196.1] containing iodine solution with glass stopper [196.2] and metal screw cap [196.3]. Bottle has a ridged neck and is approximately half filled with iodine solution. obstetric delivery

The use of chloroform as an anaesthetic for humans was first demonstrated by Edinburgh surgeon James Young Simpson in 1847. It was used as an anaesthetic in the 19th and early 20th centuries.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Amber glass bottle [197.1] with long neck and matching stopper [197.2]. The text "Lamprecht's" and "36587" stamped into the glass. Bottle is round with a fluted, vase like top and a small spout. Stopper is topped by a circular knob and tapers towards a point."Lamprecht's" "36587"anaesthesia

These types of towels were introduced into hospitals in the 1900s, where they were used mostly in operating theatres and on dressing trays. The towels became too costly to launder and were replaced by more modern disposable materials.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Thick cotton/linen towel, with a 'bubble' or 'chain' design in the material. The word "Hospital" is woven into the central band. There is a 1.25cm machined hem on unsealable sides.obstetric delivery

These types of towels were introduced into hospitals in the 1900s, where they were used mostly in operating theatres and on dressing trays. The towels became too costly to launder and were replaced by more modern disposable materials.Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Thick cotton/linen towel, with a 'bubble' or 'chain' design in the material. The word "Hospital" is woven twice into the central band. There is a 1cm machined hem on unsealable sides.obstetric delivery

This is a one pint general purpose enamel jug. Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Cream coloured jug, made of enamelled metal with a blue rim. Inside the jug are markings for imperial and metric capacity.infant care

Dr Mitchell Henry O'Sullivan worked in the Victorian country town of Casterton as a general practitioner from 1919 until his death in 1977. He also practiced obstetrics. His son, Dr David More O'Sullivan donated his obstetric bag and its contents to the College in 1999. The bag and contents are a unique time capsule of the type of instruments and pharmaceuticals used in the inter-war period.Chamois bag originally used for obstetric forceps. The bag is sewn down the centre to form two compartments.obstetric delivery