Guide Sheet No.:- Conditions ^n a control area vary. There 

 may be a large flat, a deep canyon with one soiithern exposxire, 

 and one northern exposure. Therefore, the chief of party 

 should divide the control units into subunits. Each subunit 

 should have the sane general exposure and should, if possible, 

 be bounded by streams, tops of ridges, flat or bottom of a 

 canon. For instance, a flat should not be included in the 

 same subunit with a north, soiith, east, or west exposure; 

 neither should an east slope be included with a west slope. 

 Give each subunit a guide sheet number. The "Guide Sheet" 

 should specify the inclusive numbers on the "Form I" slips 

 applying to each guide sheet area. This "Guide Sheet" should 

 also contain a genera] description of the topography, enumerate 

 the timber species, and give the general exposure, timber starjf 

 per acre, prevalence of brush patches, or rocky areas, etc. 

 It is important that infestations existing in species of trees 

 other than those being treated should be mentioned, giving the 

 insect species doing the damage. 



Tree No.:- The "Tree No." should correspond to the consecu- 

 tive number in blue crayon placed on the stump and butt log 

 of each tree. 



Cause of Death:- Use abbreviations in the appendix. In cases 

 where the abbreviations arc not given write the full name. 



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