270 



ILLINOIS ACADEMY OF SCIENCE 



dealing in crop production, in settling questions of such 

 a delicate nature as the exclusion of certain races from 

 certain regions, a knowledge of climatic data and parti- 

 cularly the effect of climatic factors on man and the or- 

 ganisms involved is of prime importance. A few years 

 ago I received a letter from a federal official asking if the 

 Ecological Society of America desired to have any par- 

 ticular kind of weather or climatic records taken, as they 

 were planning a bureau of agricultural meteorology. It 

 is my understanding that similar letters were written to 

 various other biologists and agriculturists but that the 

 weather bureau did not gain very much information as 

 to what kind of records should be taken. This is the 

 fault of biologists who have failed to conduct experi- 

 ments on the effect of climatic factors on organisms. The 

 character of the records to be made is determined by the 



Fig. 7. The solid black shows the areas of most stimulating clim- 

 ate (after Huntington). The stippling shows the area in Asia and the 

 Orient with 50 inches of rain per annum. The yellow race has colonized 

 in the tropics only where there are 50 inches of rain. The heavy line 

 indicates limits of colonization. They are excluded from these parts 

 of Australia which are unfit for white men (after Taylor) but suitable 

 for them. 



