HOW TO OBTAIN ENTOMOLOGICAL BOOKS AND PAMPHLETS. 117 



Zeitschrift fur wissenschaftliche Insektenbiologie. Berlin. A 

 continuation of the "Allgemeine Zeitschrift fur Entomologie." 

 Begun in 1901. 



Contains lists of recent literature and many reviews. 

 Zoologischer Anzeiger. Leipzig, Germany. Begun in 1876. 

 Contains bibliography of recent literature. 



HOW TO OBTAIN ENTOMOLOGICAL BOOKS AND PAMPHLETS. 



Comjoaratively few of the works treating of the classification of 

 North American insects have been published as separate books; but 

 such' as have been so published, if of recent date, can be obtained 

 through the regular book trade. By far the greater number of the 

 monographs and synopses mentioned in the preceding pages have been 

 published in scientific periodicals and transactions of scientific socie- 

 ties. These periodicals and transactions can be obtained through the 

 societies which publish them and through the publishers ; but, in the 

 case of transactions, single volumes, and more especially single papers, 

 are seldom sold, and the older volumes are likely to be out of print. 

 Moreover, the expense attending the purchase of all of the periodicals 

 containing the publications on a given order of insects will be so great 

 as to put them beyond the reach of most entomologists. The custom 

 of placing at the disposal of authors a number of separate copies of 

 their papers overcomes this difficulty to some extent and creates a 

 small supply. Thus it often happens that a person interested can 

 obtain a copy of a scientific paper by addressing the author person- 

 alty. Many of these separate copies also get into the possession of 

 dealers in second-hand books, and can be purchased from them. The 

 American Entomological Society, Philadelphia, Pa., the Entomolog- 

 ical Society of Washington, and a few other societies here and in 

 Europe offer for sale from their duplicates many of these authors' 

 extras, and in some cases publish lists. There are, moreover, certain 

 business establishments which make a specialty of the sale of works 

 and pamphlets on natural history, including entomology, and it is 

 chiefly through these dealers that the student is enabled to secure 

 the. larger portion of the works. All of those publishing catalogues 

 of entomological books and pamphlets are included in the following- 

 list : 



J. B. Balliere et fils, 19 Rue Hautefeuille, Paris, France. 



The Brooklyn Book Exchange, 176 Clarkson St., Brooklyn, N. Y. 



The Brownell Book Co., 11 East 59 St., New York, N. Y. 



S. Calvary & Co., Neue Wilhelmstr. 1, Berlin NW. 7, Germany. 



F. L. Dames, Voss-Strasse 32, Berlin, Germany. 



Dulau & Co., 37 Soho Square, London, W., England. 



The Franklin Bookshop, 920 Walnut St., Philadelphia, Pa. 



R. Friedlaender & Sohn, Carlstrasse 11, Berlin, Germany. 



Georg & Co., Freiestrasse 10, Basel, Switzerland. 



