AMERICAN 



JOURNAL OF SCIENCE AND ARTS. 



[THIRD SERIES.] 



Akt. I. — Contributions to Meteorobxp/, /,-//,</ /-.-,?>/ fa derived from 

 an examination of the Obse, i at, „ ft, J < i s/ , s„„„,/ 

 Service, and from other sources ; by Elias Loomis, Professor 

 of Natural Philosophy in Yale College. Sixth paper. With 

 plates I, II and III. 

 [Bead before the National Academy of Sciences, Philadelphia, Oct. 18, 1876.] 



Period of unusual heat in June, 1873. 

 Ik June, 1873, an unusually high temperature prevailed 

 throughout a large portion of the United States. At most of 

 the Signal Service stations the thermometer rose above 90° 

 during some part of the month, and at several of the stations 

 there were more than ten days on which the thermometer rose 

 as high as 90°. In the following table, column 1st shows the 

 Temperature of 90° in June, 1873. 



— 



m . 





Co., 



| 



«N*. 



F t!;;,?- 



c«.. 



Fort Sully 



44° 



39' 



IfibT 



17 



St. Paul 



44° 63' 



794 



5 



!nd u la 





























Baltimore 









Denver .'[.] 



H 



H 



-1^ 



11 



Chicago 



40 " 



t«B 



1 



Keokuk.. 































41 3n 

















iPort Garry.... 









^ oa3e 



:>,i 



4b 



£ 



I 



Oswego...."." 

 Lexington, Ky.. 

 Montreal ....".. 



H 1 



i"S:< 



I 



b uw 









81.:; 













Breckenridge.. 



41 



!" 



;'.-- 



5 



Toronto..::::: 



43 39 



:;^ 



o 



Omaha. 



•41 



ia 



104.5 



6 











