120 



THE CANADIAN ENTOMOLOGIST. 



the bottle as to saturate the pasteboard on which the specimens rest, 



their wings may become moistened and somewhat damaged. To prevent 



accidents of this character, pack a bunch of crumpled newspaper tightly 



down on the pasteboard before putting in any specimens ; the paper will 



be dry, and will prevent the insects from coming in contact with the 



moist pasteboard. 



For Coleoptera I use a morphine bottle prepared in the same way, 



except that the newspaper is not wanted, and it is closed with a cork. I 



always carry such a bottle in my pocket ready primed, and thus am 



always prepared for preserving any specimens captured incidentally while 



engaged in other affairs. 



J. A. Jackson, Des Moines, Iowa. 



FOSSIL BUTTERFLY FOR SALE. 



In order^to illustrate more fully his forthcoming work on New England 

 Butterflies, the undersigned offers for sale for Two Hundred and Fifty 

 Dollars, that wonderfully preserved Fossil Butterfly, Prodryas Pe?-sep/iofie, 



of Colorado. The accompanying cut gives a rude impression of it. Less 

 than twenty specimens of fossil butterflies are known in the world, and 

 this is by far the most perfect and best preserved. 



Samuel H. Scudder. 

 Cambridge, May 9, 1887. [adv.] 



