XXxii, '21] ENTOMOLOGICAL NEWS 185 



per cunt, is to be made to this price. Herr Wagner asks for subscrip- 

 tion orders. 



It is difficult to reconcile such a project with the appeals for assistance 

 for existing journals such as that published in the May number of the 

 NEWS. 



PREVENT FOREST FIRES IT PAYS! 



EDITOR, ENTOMOLOGICAL NEWS As a newspaper man you know with- 

 out any telling what is the paper situation. Substantially every other 

 industry using wood in any of its forms is in the same kind of trouble, 

 or very soon will be. 



In Pennsylvania the root of the whole trouble has been and still is 

 the unmitigated curse of forest fire. Fire has destroyed more grow- 

 ing and prospective timber than all land clearing and cutting put to- 

 gether. Forest fires keep down -production. Every acre of soil not 

 needed for purposes more important should be growing trees. To do 

 so they must be made secure against fire. , 



Because of the open winter and early spring the present fire season 

 threatens to be one of the worst in years. I should appreciate it greatly 

 if you would help by carrying, during May and June, the slogan of 

 the Department of Forestry, which is, "Prevent Forest Fires It Pays." 



Your co-operation will be specially useful in making the idea of 

 forest protection a part of the every day thought and consciousness of 

 our people GIFFORD PINCHOT, Commissioner of Forestry, State of 

 Pennsylvania. 



Entomological Literature 



COMPILED BY E. T. CRESSOX, JR., AND J. A. G. REHN. 



ruder the above head it is intended to note papers received at the 

 Academy of Natural Sciences, of Philadelphia, pertaining- to the En- 

 tomology of the Americas (North and South), including Arachnida and 

 Myriopoda. Articles irrelevant to American entomology will not be noted; 

 but contributions to anatomy, physiology and embryology of insects, 

 however, whether relating to American or exotic species, will be recorded. 



The numbers in Heavy- Faced Type refer to the journals, as numbered 

 in the following- list, in which the papers are published. 



All continued papers, with few exceptions, are recorded only at their 

 first installments. 



The records of papers containing new genera or species occurring north 

 of Mexico are all grouped at the end of each Order of which they treat. 



For records of Economic Liu-r:it ure. see the Experiment Station Record. 

 Office of Experiment Stations, Washington. Also Review ot Applied En- 

 tomology, Series A. London. For records of papers on Medical Ento- 

 mology, see Review of Applied Entomology, Series B. 



The titles occurring in the Entomological News are not listed. 



2-- Transactions of the American Entomological Soeietv, Phila- 

 delphia. 4 Canadian Entomologist, London, Canada. 5 IM die, 

 Cambridge. Mass. 6 Journal of the \e\v York Entomological 

 Society. 7 Annals of the Entomological Society of America, Co- 

 lumbus, Ohio. 10 Proceeding- of the Entomological Society of 

 Washington, D. C. 12 Journal of Keononiic Entomology, Concord. 

 N. H. 13 Journal of Entomology and ZOO!<>L:\. < 'larunont. Cal. 

 14 Proceedings of the Zoological Society of London. 20 Bulletin 



