CLIMATE. 



6. 



7. 



8. 

 9. 

 10. 



How was clover affected by the previous winter? What was 



the relation of precipitation in April, May and June to the 



hay crop in the year of greatest yield? 



Study the relation of snowfall to the preservation of crops. 



What relation do you observe between weather conditions and 



the production of clover seed? 



Make similar comparisons in the study of weather conditions 



and the production of other crops. 



In what state do you find the greatest variety of crop produc- 



tions? Give reasons. 



Of what importance are these facts of climate and production 



in the selection of a farm? How has it affected the migratory 



movement of the people? 



Tfatft N 

 fa// 



i 



\ fc. 



\ 



6.00 



5.00 

 450 ^t- 



3.50 

 3.00 



tso 

 /.oo 



37.3 



s 7=^t 



33. 3 



3J.3 



29.3 



27.3 



25.3 



Z.Z.3 



/?/. 3 



'7.3 



FIG. 3 Average Ohio, Indiana, Illinois, Iowa, Kansas, Nebraska, Mis- 

 souri and Kentucky. 



Relation of corn yield to July rainfall. The light dotted line repre- 

 sents the variation in inches of rainfall, while <the solid line shows the 

 corn production for the corresponding years. It will be noted that a 

 high yield accompanies an abundant rainfall. The heavy straight dotted 

 line shows average rainfall and production. 



Experiments and Demonstrations. 



Invert a glass jar over a live plant. The inner surface of the jar 

 will be covered with moisture in a very short time. This is caused by 

 the transpiration of the live plant. 



Examine the stomata or openings on the under side of the leaf 

 with a microscope. These are the pores through which the water is 

 exhaled. 



