AGRICULTURAL EXPERIMENT STATION. 



157 



In order that comparisons may be made between soil tempera- 

 tures at different depths and the air temperatures during the same 

 mouths and in the same locality, the following tables are added : 



Thermometer in the Open Air. 

 (Locality the same as that of the soil thermometers.) 



1889. 



May, 



7 A. M. 

 



52.95 



I p. M. 

 



68.30 



7 p. M. 

 



59.47 



Mean. 







60.24 



June, 



63.36 



74.27 



68.07 



68.57 



July, 



65.12 



75.75 



70.86 



70.. 58 



August, 



59.97 



74.20 



66.81 



66.99 



September, 



54.39 



70.86 



61.55 



62.27 



October, 



37.41 



52.80 



44.05 



44.75 



Mean, 



55.53 



69.36 



61.80 



62.23 



1890. 



7 p. M. 



April, 



35.76 



49.02 



42.55 



42.44 



May, 



49.16 



60.60 



53.58 



54.45 



June, 



57.95 



67.64 



62.76 



62.78 



July, 



67.10 



76.19 



71.85 



71.71 



August, 



61.50 



73.78 



68.84 



68.04 



September, 



52.04 



66.16 



58.52 



58.91 



October, 



37.70 



53.19 



45.63 



45.51 



Mean, 



51.60 



63.80 



57 68 



57.69 



7 A. M. 



1891. 



Mean. 



April, 



36.33 



48.26 



43.64 



42.74 



May, 



47.07 



61.75 



53.30 



54.04 



June, 



58.28 



72.42 



65.38 



65.36 



July, 



64.08 



76.05 



68.81 



69.65 



August, 



62.07 



74.94 



67.47 



68.16 



September, 



56.13 



69.72 



61.80 



62.55 



October, 



38.11 



54.02 



45.56 



45.90 



Mean, 



51.72 



65.31 



57.99 



57.34 



