in 



probally accounts for the fact that they show sj.mjlar graphs 

 of the tempera tiire values. 



Ghewsvllle .and Llonrovia . The graph of physiological tem- 

 perature indices for Ghewsville sho\'7s all the characteristics 

 mentioned as general throughout the series cf staions. It 

 rises gradually during the first three periods, f period "be- 

 ginning May 19 to oeriod heginning June 16) , '^hen drops 

 slightly during the fourth period flieginning June 30) alter 

 which it rises for the period beginning July 14 to a maximum 

 of 149. The value for th'- 6th peric .ginning July 28) 

 is relatively low fll2) , after which the maximum (145) 

 occurs for the period beginning August 11. The index value 

 in question then decreases rapidly during the next two -oeriods 

 attaining a magnitude : f 46 for t'le 9th period fbeginning 

 Sept. 6) and remaining low until the end of the frostless 

 season. Monrovia has the same -ort of graph as Ghewsville, 

 the maxima coning in the periods beginning ^uly 13 and 

 August 10. The minimum relative value of the temperature 

 index is 53 for the period beginning Sept. 21. 



Baltimore, Darlington, and Coleman. At Baltimore, the 

 physiological temperature values increase gradually to a maxi- 

 mum of 162 for the period beginning July 9. The seconf maxi- 

 mum comes in the preiod beginning August 6 after which there 

 is a rela-^ively rapid decline of the index values to 62 for 

 the period beginning September 3. The Da-'lington graph has 

 its first maximxun in the first two weeks f July and its second 

 in the two week period beginning August 7, and then falls off 

 rapidly to a minimum cf 46 for t' « -^'vs*- '^eriod '-^i September. 



