Suggestions and Course of Study 135 



of moisture; (10) how the amount of moisture affects 

 the struggle for existence. 



VI. Relation of the Object to Light: (i) What 

 effects are due to the light; (2) what the results are 

 when light is withdrawn; (3) whether the object seeks 

 the light or avoids it, turns towards or away from the 

 light; (4) what adaptations exist to secure the light; (5) 

 what adaptations to avoid the light; (6) how the partic- 

 ular locality may increase or diminish the light; (7) 

 adaptations to secure uniform light or to avoid too 

 strong light; (8) how parts differ according to the 

 amount of light received; (9) how different parts 

 differ as their relation to light differ; (10) how the 

 relation to light differs at different periods. 



VII. Relation o) the Object to Heat: (i) How varia- 

 tions in temperature affect it; (2) how the locality 

 favors uniform temperature; (3) what is the effect of 

 low temperature; (4) what provision is made to avoid 

 too low or too high temperature; (5) other adapta- 

 tions to this relation; (6) behavior due to temperature; 

 (7) how temperature produces the effect; (8) how 

 different seasons affect it; (9) how it changes with 

 variation in temperature as in summer and in winter; 

 (10) how other objects affect its temperature; (n) how 

 locality is affected by winds and hence by difference 

 in temperature. 



VIII. Relation of the Object to Elevation: (i) Whether 

 elevation has any influence directly; (2) changes corre- 

 sponding to elevation; (3) effect of elevation modified 

 by changes in temperature; (4) effects of elevation 

 modified by changes in moisture; (5) effects of eleva- 

 tion modified by changes in light; (6) adaptations 

 to secure elevation; (7) adaptation for anchoring or 

 clinging to the ground; (8) modifications favorable 

 to high or low ground; (9) secondary influences 

 affecting elevation as soil, moisture, temperature; 

 (10) laws showing purpose or design. 



