EXPERIMENT STATION BULLETINS. 



797 



TABLE 84.— MONTHLY, SEASONAL, AND YEARLY MAXIMUM, MINIMUM AND AMPLITUDE OF TEMPER- 

 ATURE OF SOIL WITH VARIOUS AMOUNTS OF ORGANIC MATTERS. 



1912-1913. 



Winter: 

 December . 



Max. 

 Min. 

 Diff.. 



Seasonal . 



Max. 

 Min. 

 Diff . 



Spring: 

 Mar. 



Max. 

 Min. 

 Diff.. 



April. 



f Max. 

 \ Min. 

 [Diff.. 



May. 



(Max. 

 Min. 

 Diff.. 



Seasonal . 



Max. 

 Min. 

 Diff.. 



Summer: 

 June. . . 



Max. 

 Min. 

 Diff.. 



July. 



Max. 

 Min. 

 Diff.. 



f Max. 



August \ Min. 



[Diff.. 



Seasonal . 



Max. 

 Min. 

 Diff.. 



Autumn: 



[ Max. 



September. . \ Min. 



I Diff.. 



October . 



Max. 

 Min. 

 Diff.. 



Max. 



November. . \ Min. 



Diff.. 



Seasonal 



[Max. 

 { Min. 

 I Diff.. 



Yearly . 



[Max. 

 i Min. 

 i Diff. . 



1.81% 

 Org. Mat. 



33.00 



30.57 



2.43 



31.07 



30.15 



0.92 



24.14 

 3.64 



30.82 



28.29 



2.33 



35.41 



32.42 



2.99 



18" 



35.79 



35.05 



0.74 



2.01% 

 Org. Mat. 



5" 



33.75 

 31.67 



2.08 



33.78 



33.40 



0.38 



31.87 



31.11 



0.76 



30.85 28.65 



30.04 24.54 



0.81 4.11 



33.47 



32.83 



0.64 



34.14 



33.35 



0.79 



52.86 46.32 

 42.36 44.15 

 10.50 2.17 



31.42 



29.11 



2.31 



36.04 



33.31 



2.73 



65.64 57.83 

 53.63 55.65 

 12.01 2.18 



51.30 



42.80 



8.50 



46.10 



44.38 



1.72 



78.36 

 65.28 

 13.08 



83.29 

 70.74 

 12.55 



81.53 

 68.50 

 13.03 



81. OP 

 68.17 

 12.89 



70.57 

 60.34 

 10.23 



69.30 



66.70 



2.60 



75.18 



72.87 



2.31 



74.08 



71 73 



2.35 



72.85 



70.43 



2.42 



66.10 



64 12 



1.98 



55.73 



49.74 



5.99 



44.37 



40.46 



3.91 



56.89 



50.18 



6.71 



54.97 



47.36 



7.61 



55.26 



53.73 



1.53 



44.32 



43.20 



1.12 



55.23 



53. (8 



1.55 



51.91 



50.33 



1.58 



55.20 

 43.42 

 11.78 



67.48 



54.88 

 12.60 



52.91 



43.87 



9.04 



81.21 

 67.03 

 14.18 



84.93 

 71.76 

 13.17 



83.14 

 69.49 

 13.65 



83.13 

 69.43 

 13.70 



71.68 

 61.35 

 10.33 



66.50 



50.46 



6.04 



45.12 



41.59 



3.53 



57.77 



51.13 



6.64 



56.31 



48.92 



7.93 



18" 



36.81 



36.18 



0.63 



34.63 



34.27 



0.36 



3.32% 

 Org. Mat. 



5" 



33.79 



31.88 



1.91 



32.01 



31.35 



0.66 



31.781 29.00 



31.21| 24.57 



O.57I 4.43 



34.41; 31.60 



33.89' 29.27 



0.52: 2.33 



34.51I 35.81 



33.84 33.54 



0.67 2.27 



46.66 



44.86 



1.80 



58.19 



56.39 



1.80 



46.45 



45.03 



1.42 



70.49 



68.42 



2.07 



76.08 



74.31 



1.77 



75.18 



73.36 



1.S2 



73.92 



72.03 



1.89 



67.33 



65.95 



1.38 



56.81 



55.67 



1.14 



46.42 

 45.54 



0.88 



58.85 



55.72 



1.13 



52.91 

 51.67 



1.24 



54.62 

 43.75 

 10.87 



67.64 

 54.99 

 12.65 



52.69 



44.09 



8.60 



81.96 

 67.18 

 14.78 



85.44 

 71.67 

 13.77 



83.57 

 69.43 

 14.14 



83.66 

 69.43 

 14.23 



71.99 

 61.38 

 10.61 



56.51 



50.50 



6.01 



45.16 



41.73 



3.43 



57.89 



51.20 



6.69 



56.46 



48.50 



7.96 



18" 



37.28 



36.71 



0.57 



5.47% 

 Org. Mat. 



6.95% 

 Org. Mat. 



34.03 



32.48 



1.55 



18" 



35.101 32.28 



34.781 31.64 



0.32 0.64 



32.16; 29.21 



31.69 25.33 



0.47 3.88 



34.85 



34.39 



0.46 



34.78 



34.19 



0.59 



46.57 



45.12 



1.45 



58.47 



56.67 



1.80 



48.61 



45.33 



1.28 



70.65 



68.18 



2.47 



75.63 



73.70 



1.93 



74.76 



72.73 



2.03 



73.68 



71.54 



2.14 



66.79 



65.21 



1.58 



55.98 



54.74 



1.24 



45.54 



44.60 



0.94 



56.10 



54.85 



1.25 



37.29 



36.70 



0.59 



35.11 



34.79 

 0.32 



31.96 



31.46 



0.50 



31.84 34.79 



29.82 34.32 



2.02 0.47 



35.40 34.18 



33.68 33.68 



1.72 0.50 



54.62 46.54 

 44.23 45.27 

 10.39i 1.27 



67.30; 57.77 

 55.60; 56.47 

 11.70! 1.30 



52.44 



44.50 



7.94 



46.16 



45.14 



1.02 



5" 



34.06 



32.82 



1.24 



32.27 



31.65 



0.62 



29.21 



25.17 



4.04 



31.85 



29.88 



1.97 



35.10 



33.53 



1.57 



54.25 



44.32 



9.93 



67.28 

 55.53 

 11.75 



52.21 



44.49 



7.72 



82.361 69.46 

 67.94] 67.83 

 14.42 1.63 



85.43 

 72.19 

 13.24 



83.29 

 70.05 

 13.24 



83.69 

 70.06 

 13.63 



71.76 

 61.72 

 10.04 



56-28 



50.58 



5.70 



44.41 



41.37 



3.04 



57.46 



51.22 



6.26 



52.81 56.36 



51.53 48.90 



1.28 7.46 



74.62 



73.31 



1.31 



73.77 



72.49 



1.28 



82.61 

 67.80 

 14.81 



85.54 

 72.02 

 13.52 



18" 



Peat. 



5" 



37.44 



36.88 

 0.56 



35.17 



34.86 



0.31 



32.26 



31.75 



0.51 



34.96 



34.50 



0.46 



34.50 



33.80 



0.70 



32.36 



32.00 



0.36 



29.60 



27.56 



2.04 



32.15 



31.12 



1.03 



33.47 



33.06 



0.41 



32.33 

 31.91 



0.42 



45.77 43.85 



44.78 41.35 

 0.99 2.50 



57.23 



56.32 



0.91 



45.49 



44.72 



0.77 



68.62 



67.58 



1.04 



73.98 



73.10 



0.88 



83.30 73.29 

 69.74 72.32 

 13.561 0.97 



72.62 83.82 71.96 



71.21 69.85 71.00 



1.41] 13.97 0.96 



66 32 71.95 66.01 



65.25 61.66 65.13 



1.07 10.29' -0.88 



56.92 



55.89 



1.03 



45.56 

 44 90i 41.97 44.89 

 0.78 3.07; 0.67 



55.95 



55.04 



0.91 



52.38 



51.43 



0.95 



57.82 56.16 



51.44 55.30 



6.38 0.86 



56.43; 52.14 



48.92 51.38 



7.51 0.76 



61.48 



58.00 



3.48 



45.89 



43.75 



2.14 



74.45 



69.28 



5.17 



78.94 



74.08 



4.86 



18" 



38.34 



37.91 



0.43 



35.85 



35.55 



0.30 



33.41 



33.05 



0.36 



35.87 



35.50 



0.37 



33.10 



32.73 



0.37 



40.39 



39.83 



0.56 



55.44 



55.13 



0.31 



42.98 



42.56 



0.42 



65.16 



64.88 

 0.28 



71.83 



71.54 



0.29 



77.30 71.93 



72.72 71.53 



4.58; 0.40 



76.90 69.64 



72.03 69.32 



4.871 0.32 



68.28 



64.36 



3.92 



55.48 



53.09 



2.39 



43.80 



42.56 



1.24 



65.28 



64.94 



0.34 



56.10 



55.69 



0.41 



45.34 



44.89 



0.45 



Air 



38.1 

 23.9 

 14.2 



34.2 

 18.2 

 16.0 



27 9 

 12.1 

 15.8 



33.40 

 18.07 

 15.33 



41.6 

 20.5 

 21.1 



56.6 

 35.2 

 21.4 



67.2 

 45.1 

 22.1 



55.13 

 33.60 

 21.53 



81.5 

 53.7 



27.8 



83.0 

 58.5 

 24.5 



81.1 

 57.6 

 23.5 



81.87 

 56.60 

 25.27 



73.3 



48.7 

 24.6 



59.0 

 41.5 

 17.5 



49.0 

 34.4 

 14.6 



55.85 55.57 60.43 



53.34 55.17 41.53 



2.51 0.40 18.90 



52.70; 51.02 



50.06 50.89 



2.64 0.13 



57.71 



37.45 

 20.26 



