2 K Loomis — Remits derived fro; 



of the 



names of the stations at which observations were made with 

 self-registering thermometers ; column 2d shows the latitude of 

 the stations; column 3d shows their elevation above the sea, 

 expressed in feet; and column 4th shows the number of days 

 on which the thermometer rose as high as 90°. 



The observations at Denver and Cheyenne indicate that on 

 an elevated plateau the extreme heat of summer is at least as 

 great as it is at the level of the sea in the same latitude ; while 

 the observations al I mtown show that an 



elevation of a few hundred feet ahove the surrounding country 

 has a sensible etleet in moderating the extremes of heat. The 

 observations in the vicinity of the Great Lakes as well as those 

 near the Ocean show that large bodies of water have a decided 

 influence in moderating the extremes of temperature. 



The stations at which the thermometer rose above 90° in more 

 than three cases are nil inland stations ; and it is noticeable that 

 at certain northern stations the heat was more intense than at 

 any of the southern stations. At Fort Sullv the thermometer 

 rose to 108° ; on seven days it rose above 100° ; and on twelve 

 days it rose as high as 95°. At Denver the thermometer rose 



Observations of the ther 



n., June 15-26, 1873. 



Station, 



San Diego ...'. . 



Fort Benton." 



Santa Fe 



Denver 



Cheyenne 



Fort Sully 



Yankton 



Fort Ga'rry "-"- 



Indianola 



Breekenridge .. 



Omaha 



Leavenworth .. 

 <!..[-. -ton .... 



St Paul— '.'.'.'. 



D, 1 th 



i^roU; ::::: 



Vickaburg 



81 



Asov* ob B^wth.M^Tsh™™*. 



i 



u 



1 



i] 



Miiaqts 



. 



