430 The American Naturalist. [May, 
The states of the Plains, the Dakotas and Nebraska, and those next 
adjacent, have taken steps to warn their people of this invading weed 
by bulletins and through the public press. The United States Depart- 
ment of Agriculture sent an agent to inspect the invaded region, and 
issued a special bulletin on the subject. The Russian Thistle is a 
common topic for papers and discussions before Agricultural and Hor- 
ticultural Societies, farmer’s institutes, farmer’s clubs, alliance meet- 
ings, ete. It will soon be so well known upon the Plains that it will no 
longer be allowed to grow unmolested because unrecognized. 
CHARLES E. Bessey. 
