NO. 2226. 



DISTRIBUTION OF ENTOMOSTRACA—DODDS. 



65 



Figure 7, showing mean monthly maxima, indicates in another way 

 the difference between these three stations. It is seen that at Corona 



Fig. 6.— Mean monthly minimum TEMPEEATxniES. 



there are three months — December, January, and February — during 

 which the temperature remains constantly below freezing, while at 



Fig. 7.— Mean monthly maximum tempeeatuees. 



Denver during the same months it commonly reaches 65° F., a 

 higher figure than the average maximum at Corona during the summer 

 3343— 19— Proc.N.M.Vol.54 6 



