42 THE PLAINS. 



thermometer at 120, in the coolest places to be found, 

 for several days during the summer of 1874, while the 

 winter of the same year sent the mercury down to 28 

 below zero a yearly variation of 148. Omaha, like 

 most other points of the third plain, has but little daily 

 variation, the nights of summer being nearly as hot as the 

 days, while the days of winter are nearly as cold as the 

 nights. 



