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NSW SEBisa 



Vol. XXXVIII. No. 971 



Friday, August 8, 1913 



Single Copies, 15 Cra. 

 Anhual Subsobiption, $5.00 



ENTOMOUOGY 



with Special Reference to Its Biological and Economical Aspects. 2nd Edition. Revised. 



By Justus Watson Folsom, Sc.D. (Harvard), Assistant Professor of Entomology at the 

 University of Illinois 

 " 'Entomology,' by Dr. Justus W. Folsom, is an advance^ over all other American works of its kind. It 

 should be in the hands of every entomologist or entomological student, and in every public library. A most 

 careful work, containing much information that only an expert has heretofore known where to find." — 

 Me. F. M. Webster, in charge of the Cereal and Forage Crops Insect Investigations, Department of Agri- 

 culture at Washington. 



Pour Plates and 304 other Illustrations. 8vo. vil-|-402 Pages. Cloth, $2.25 Postpaid. 



THE PRINCIPLES OF 

 BIOLOGY 



Including Brief Outlines for Laboratory 

 Work 



By J. I. Hamaker, Professor of Biology, Ran- 

 dolph-Macon Woman's College, Virginia. 267 

 Illustrations. 469 Pages. Cloth $1.50 Post- 

 paid. 



Part I gives the fundamentals of plant organ- 

 ization and hfe processes. Part II does the same 

 for Animals. Part III discusses the more impor- 

 tant general biological phenomena. 



THE COMPARATIVE ANA- 

 TOMY OF THE VERTE- 

 BRATES 



By J. S. KiNGSLET, Professor of Biology in Tufts 

 College, Massachusetts. 346 Illustrations. 

 Octavo. 410 Pages. Cloth, $2.25 Postpaid. 

 "Teachers of comparative anatomy have long 

 felt the need of a suitable textbook on the sub- 

 ject. This new book by Professor Kingsley ex- 

 actly meets the requirements." 



— American Journal of Science. 



MICROBIOLOGY 



A Text^book of Micro-organisms, General and Applied 



By various writers. Edited by Charles E. Marshall, Professor of Microbiology and Director of 

 Graduate School, Mass. Agricultural College. 129 Illustrations (1 Colored Plate). Flexible Cloth, 

 $2.50 Postpaid. 



Discusses Morphology, Culture and Physiology of Micro-organisms, including Nutrition and Meta- 

 bolism, Physical Influences ; Bacteriology of Dairy, Soil, Water Supplies, Sewage Disposal, Air, 

 Special Manufactures, Diseases of Man, Animals and Plants. 



ELEMENTARY ZOOLOGY 



By T. W. Galloway, Ph.D., Professor of Bio- 

 logy, James Milliken University, Decatur, Illi- 

 nois. 160 Illustrations. Octavo. 438 Pages. 

 Cloth, $1.25 Postpaid. 



"The material is excellently classified and of 

 sufficient detail to get a young student thoroughly 

 interested, if he has the slightest turn at all 

 toward science." — American Educ. Review. 



ZOOLOGY 



2nd Edition 



By T. W. Galloway, Professor of Biology, James 

 Milliken University, Decatur, Illinois. 240 

 Illustrations. Octavo. 460 Pages. Cloth, 

 $2.00 Postpaid. 



"It is no small compliment to this volume to 

 say that it is well balanced in its treatment of 



Zoology in the widest sense few recent 



textbooks bear comparison with this volume." 



— The Nation. 



P. BLAKISTON'S SON & CO. Publishers 



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