The map was surveyed by ship compass, distances by estimation or rate of launch by officers of the Government ; supervised and compiled by J.B. Cameron, G.S. March 1893.
This map was in the possession of Charles Carty Salmon (1860-1917), politician, born on 27 July 1860 at Amherst, Victoria. (http://adb.anu.edu.au/biography/salmon-charles-carty-8328 )
Although living in Melbourne Charles Carty Salmon kept property at Talbot. The property was leased, then purchased by the donor's family. A copy of "The Goulburn Weir and its Dependent System of Works" and this map (in a government envelope addressed to Salmon) were left at the property.
.1) Sketch map showing the rivers and an outline of the coast from Long. 144?30'E. to Long. 146?30'E. Gulf of Papua British New Guinea Scale [ca. 1:316,800].
.2) Large envelope addressed to The Hon Charles Carty Salmon M.P., Talbot, Victoria. The map was folded and stored in this envelope.
Map extending from Port Bevan to Kaikavau Pt, showing rivers and notes on soil and vegetation. Relief shown by hachures and spot heights.
Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-rm1894-1
Inscriptions & markings
.1) "Enclosure in Despatch No. 32 of 3rd May 1893 - Appendix G.".
"Map no. 4 British New Guinea report 1892-93".
.2) "This envelope can only be lawfully used by Government Officials on public business. Any use by Officials on private business, or by others under any circumstances, is punishable."
"Commonwealth Celebrations. General Secretary's Office, Melbourne."