SCIENCE 



New Series T^lDTT^A■^r T\/r»Tr f; 1Q99 Single Copies, 15 Cts. 



Vol. LV, No. 1427 ^ RIDAT, iVLAY o, XJ^^ ANNUAL Sotscription, $6.00 



Ranson's Anatomy ' "^ 

 of the Nervous System 



Dr. Ranson presents anatomy of the nervous system from the dynamic rather than the 

 static point of view; that is to say, he lays emphasis on the developmental and functional 

 significance of structure. The student is thus led at the very beginning of his neurologic 

 studies to think of the nervous system in its relation to the rest of the living organism. 

 This method not only makes the subject interesting, but makes more easy the correlation 

 of the various neurologic courses. An outline for a laboratory course in neuro-anatomy 

 is included. The text is fully illustrated, there being 260 illustrations, some of them in 

 colors. 



Octavo of 3(35 pages, illustrated. By Stephen W. Ranson, M.D., Ph.D., Professor of 

 Anatomy in Northwestern University Medical School, Chicago. Cloth, $6.50 net. 



SEVENTH EDITION 



Jordan's General Bacteriology 



In this work there are extensive chapters on methods of studying bacteria, including 

 staining, biochemical tests, cultures, etc.; on development and composition of bacteria; 

 on enzymes and fermentation products; on the bacterial production of pigment, -acid, 

 and alkali ; and on ptomains and toxins. 



Octavo of 744 pages, illustrated. By Edwin O. Jordan, Ph.D., Professor of Bacteriology 

 in the University of Chicago. Cloth, $5.00 net. 



Fred's Soil Bacteriology 



The exercises described in this book are arranged primarily for students of soil bacteri- 

 ology, soil chemistry and physics, and plant pathology. As far as possible the experi- 

 ments are planned to give quantitative results. It is truly a valuable laboratory manual 

 — worked out by a teacher and based on the student's needs. 



i2mo of 170 pages, illustrated. By E. B. Fred, Ph.D., Associate Professor of Agricultural 

 Bacteriology, College of Agriculture, University of Wisconsin. Cloth, $1.50 net. 



Prentiss and Arey's Embryology third edition 



This work has been extensively revised and entirely reset. The actual descriptions have 

 been recast and rearranged, a new chapter on the morphogenesis of the skeleton and 

 muscles has been included, and thirty-nine illustrations replace or supplement certain of 

 those in the former edition. The illustrations form an instructive feature. 



Large octavo of 411 pages, with 388 illustrations. By Charles W. Prentiss, Ph.D., 

 formerly Professor of Microscopic Anatomy, and Leslie B. Arey, Ph.D., Professor of 

 Microscopic Anatomy, Northwestern University. Cloth, $5.50 net. 



W. B. SAUNDERS COMPANY, West Washington Sq., PhUa. 



