500 



TRANS. ST. LOUIS ACAD. SCIENCE. 



the sky, rises from December t^radually 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 

 London . . . 37.2 39.3 42.7 

 Difference. -1 5.4 +3.9 —1.0 



MEAN AND EXTREME TEMPERATURES IN ST. LOUIS FROM 1836 to 1882. 



