ITo?ne, and Range East of Mountains. 



65 



not hatch out. The changes from extreme wet to dry, and from 

 cold to hot weather, or some other unknown causes, seem to sap 

 their constitutional vigor. Were it not for this, long ere now these 

 grasshoppers would, from their enormous numbers, have desolated 

 the whole country as far east as the Atlantic. — [Prof. Sam'l Aughey, 

 of the University of Nebraska, in the Lincoln (Neb.) Journal. 



I have observed hundreds of winged locusts fall to the ground 

 during flight, either already dead or soon dying. These upon exam- 

 ination have generally proved to contain no parasites, and I judge 

 that their death was in consequence of impaired strength, this 

 second generation raised in an unnatural climate not equaling in 

 vitality the first generation, and succumbing to the fatigue conse- 

 quent upon extended flight. — [Prof. F. H. Snow, of Kansas State 

 University, in Observer of Nature. 



IT WILL NEVER DO SERIOUS HARM EAST OF THE NINETY- 

 FOURTH MERIDIAN. 



A full month before a single specimen of the Rocky- 

 Mountain Locust reached Missouri in 1874, I predicted 

 that it would come into the western counties too late to do 

 any very serious damage, and that it would not reach 

 beyond a given line. To the many anxious correspondents 

 who, fearing that the State was to be overrun, as Kansas 

 was being overrun, wrote for my opinion and advice, I 

 replied : " Judging of the future by the past, the farmers 

 of Missouri, east of the extreme western tier of counties, 

 need fear nothing from locust invasions. They may plant 

 their fall grain without hesitation, and console themselves 

 with the reflection that they are secure from the unwel- 

 come visitants which occasionally make their way into the 

 counties mentioned, especially into those of the northwest 

 corner of the State. The same holds true of the farmers 

 • of Illinois and of all the country east of a line drawn at a 

 rough estimate, along longitude 17° west from Washing- 

 ton 



This prediction was fully borne out by subsequent events, 

 and I have ever insisted that east of the line indicated 

 there is no danger from this locust. 



