76 



B. Westeraiann & Go,, 838 Broadway, New York, and Gustav E. Stech- 

 ert, 766 Broadway, New York. 



By subscribing to the entomological periodicals published in this 

 country (a matter of but slight expense) the student may keep abreast 

 of the current literature. Short book reviews or notes iJublished in 

 our periodicals call attention to the more important publications in 

 other countries. Moreover, the Zoologischer Anzeiger, edited by Prof. 

 J. Victor Cams, in Leipzig, Germany, and published every fortnight, 

 gives a tolerably complete bibliography of the current entomological 

 literature at intervals of about six or eight weeks. The "Naturae 

 Novitates," published every fortnight by E. Friedlaender & Sohn, Carl- 

 strasse, 11, Berlin, Germany, gives the titles of most recent works and 

 pamphlets. 



There are also three great annual publications, viz : " Die Fortschritte 

 auf dem Gebiet der Entomologie," published in Wiegmann's " Archiv 

 fiir Naturgeschichte"; "The Zoological Eecord," published by the 

 Zoological Record Society, in London, England ; and the "Zoologische 

 .Tahresbericbte," published by the Zoological Station at Naples, Italy, 

 which give the full literature of the previous year, discussing the more 

 important papers and giving a list of the new species, besides other 

 information. One or the other of these three publications is almost 

 indispensable to the student in any branch of Zoology, and ought to 

 be found in every public library in the country. Unfortunately, only 

 a year ago the editors of the " Zoblogische Jahresberichte" found it nec- 

 essary, in order to reduce expenses, to curtail the scope of the work ; 

 so that, beginning with the year 1887, this publication no longer con- 

 tains titles upon systematic and classificatory Zoology. Only biological 

 titles are now published, but the series up to 1887 is the most complete 

 thing of its kind. 



A not inconsiderable portion of the North American literature on the 

 classification of insects has been published by the General Government 

 through various channels, and foremost among them are the Smith- 

 sonian Institution, the U. S. Department of Agriculture, the U. 8. Na- 

 tional Museum, the U. S. Geological and Geographical Survey, and the 

 reports of the various surveys of the Territories. Many of these pub- 

 lications are distributed free of cost to any one applying for them ; while 

 others, like certain ot the Smithsonian publications, are sold at a mod- 

 erate price to cover the cost of publication. Many of them are out of 

 print, and can only be obtained through natural history book-dealers. 

 The firms mentioned above will have maTly of them, and Lowdermilk & 

 Co., of Washington, D. 0., who make a specialty of Government pub- 

 lications, are always able to furnish many more. 



Of the more general works, some of them can be obtained direct from 

 the publishers, and in such cases the publishers are mentioned in the 

 general list. The older ones are mostly out of print and can only be 

 obtained from second-hand dealers. The current State reports of Lint- 



