TRANS. ST. LOUIS ACAD. SCIENCE. 500 
the sky, rises from December gradually till May, falls a little in 
June and July and more in August, rises to its highest point in 
September, is yet high in October and then falls rapidly till De¬ 
cember, to rise again in January. 
The temperature of our continental locality shows a great dif¬ 
ference from that of the western coast of Europe ; as a convenient 
example we may refer to the temperature of London. Their win¬ 
ters are warmer from the latter part of November until the begin¬ 
ning of March, and their summers much cooler from this period to 
the latter third of November ; and the mean is much higher here. 
Whole 
Jan. Feb. Mar. Apr. May. June. July. Aug. Sept. Oct. Nov. Dec. year. 
St. Louis... 31.8 35.4 43.7 56.2 66.3 74.7 79.2 76.8 69.0 56.1 42.8 33.4 * 55.4 
London... 37.2 39.3 42.7 48.1 54.5 60.8 63.6 62.0 57.6 50.4 42.7 39.7 49.9 
Difference.45.4 4-3.9 -1.0 -8.1 -11.8 -13.9 -15.6 -14.8 -11.4 -5.7 -0.1 4-6.3 -5.5 
> EXTREME TEMPERATURES IN ST. LOUIS FROM 1836 to 1882. 
Max. | Me; 
36.77 30J 
37.97 31.f 
38.55 32.C 
24.80 87.66 31.01 
Day of the Yeai 
25.61 
26.71 
25.80 
24.03 
21.09 
21.65 
23.63 
23^64 
25.97 
23.84 
24.63 
37.63 
33.95 28.1 
34.61 284 
35.48 29.( 
34.82 28.*; 
35.29 294 
39.20 32J 
39.27 324 
36.81 30.1 
38.11 314 
39.67 33.1 
38.61 324 
36.27 30.1 
34.27 -27.( 
34.32 ! 274 
1854 
1857 
1854 
1873 
1840 
1876 
1855 
1874, 1880 
1842 
1843 
*true 
Mean. 
29.0 
29.0 
29.5 
29.4 
30^2 
30.6 
31.0 
31.4 
30.6 
31.8 
32.0‘ 
32.0 
32.0 
32.0 
31.9 
32.0 
Botanical 
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