Historical information

A School of Military Survey Precis, 8 x foolscap sized pages of typed text, stapled and two hole punched. The precis No 3 covers the Observation procedure to be used for 1st, 2nd and 3rd Order Triangulation using the Royal Australian Survey Corps standard Cooke, Troughton and Simms Tavistock or Wild T2. The geodetic model Tavistock with a 5.25" horizontal circle should be used for 1st Order Triangulation and maybe used for 2nd Order Triangulation if specially directed. The standard Tavistock with 3.5" horizontal circle or the Wild T2 should be used for 2nd and 3rd Order observations. The Precis discusses the types of errors, the source of errors and the best ways of managing them.
In surveying, triangulation is the process of determining the location of a point by measuring only angles to it from known points at either end of a fixed baseline by using trigonometry, rather than measuring distances to the point directly as in trilateration.

Physical description

A School of Military Survey Precis, 8 x foolscap sized pages of typed text, stapled and two hole punched.