

approximate cost E.G$>' por acre as against about 4.5 -under 



old system. 



Discussion, in which Hall said that a 

 system of cruising -and or which they es- 

 tablish their ovm primary control has 

 "boon worlied out in the reconnaissance 

 outlines in District 6 very thoroughly; 

 and it might be v;ell for those int crest - 

 od in that sort of reconnaissance to get 

 a copy of the outline. 



E:30 - Explanation of Plane 5 able Mapping as Employed on 

 tlio Henath, advantages and Disadvantages. -There 

 Applicable ost s 



explained exactly hoi; the v/orli v;as done on the 

 mc-mat h Map P r o 3 e ct . 



Discussion. 



E-40 - Suggestions for Improvement in Present System of 



Reconnaissance Harping. How can Iloro AOOTttee Yer- 

 tical Control "bo Secured? Should Contours be Sliotoh- 

 cd in the Field? Is a Map Specialist lleec.ed with 

 Each Party? 



I shall limit this discussion chiefly to the sub- 



ject of vortical control- 



As to tho nocesGity of a mapping specialist on re- 

 connaissance, we certainly do need a man vho has good fa- 

 miliarity with mcppin- and can produce a map the* is credit- 

 able but I do not believe wo must necessarily have a Geolo- 

 gical Survey specialist or any other specialise vho must be 



paid a high salary* 



TTith regard to the sketching in of contours, I be- 

 lieve most emphatically fat at least under cnr preset gen- 

 eral methods the contours should be put in in the field. 



SoJL 



