Q2 STATEN ISLAND INSTITUTE OF ARTS AND SCIENCES 
129 species and varieties, of which 60 are new, are treated in this 
volume, with a profusion of illustration and distribution data, 
which reflect Mr. Davis’ skill with the camera, for the illustrations 
are made from his own photographs, and the large size of his 
cicada collection, from which the distribution data are drawn. 
The attention that has been paid to the earlier descriptions, not 
always easy to recognize, is also remarkable, and results for in- 
stance in fixing the name of our largest species on Staten Island 
as Cicada auletes Germar. 
THE CACTACEAE, DESCRIPTIONS AND ILLUSTRATIONS OF PLANTS 
OF THE Cactus Famity, by N. L. Britton and J. N. Rose, The 
Carnegie Institution of Washington, vol. I, tg19, vol. II, 1920. 
These two volumes, presented to the library by the authors, 
include 475 quarto pages, 76 colored plates, and 607 text figures, 
one of which represents Opuntia opuntia in its natural surround- 
ings on Staten Island. It is impossible to conceive of a more 
complete treatment of the cactus family than has been.accomplished 
in these volumes by our distinguished fellow member. 
CATALOGUE OF THE’COLEOPTERA OF AMERICA, NoRTH OF MEXICO, 
by Charles W. Leng, published by John D. Sherman, Jr., Mt. 
Wena, IN, Wo, 120. 
In 470 pages this volume, presented to the library by the author, 
gives the names, synonyms, citations of original descriptions, and 
localities, among which Staten Island frequently appears, of the 
18,547 kinds of beetles known from the region treated. The in- 
troduction includes an essay on the classification; a bibliography 
of taxonomic works on Coleoptera is added; and Prof. H. F. 
Wickham, of Iowa University, has contributed a catalogue of the 
North American Coleoptera described as fossils. 
(Co Wo Ike 
