40 AGRICULTURE. 



and make a drawing of both vertical and horizontal, or 

 connecting, channels. 



(b) Note any environmental changes made by man or 

 other animals, or by plants. 



(f) Note any fossils, or animal accumulations. 



(d] Remarks and conclusions. (It is to be understood 

 that any observation made under any of the foregoing 

 heads is to be written up in its place, whether it is men- 

 tioned in this outline or not.) 



[References after Chapter III.] 



