SCIENCE-ADVERTISEMENTS 



Longmans' New Books 



Texi-book on Wireless Telegraphy 



By RUPERT STANLEY, B.A., M.LE.E., Professor of Physics and Electrical Engineering, Municipal Technical 

 Institute, Belfast ; Extra Mural Professor of Electrical Engineering, Queen's University, Belfast. With 201 

 illustrations. Svo. Pp. xiv+344. $2.25 net. 



This book has been written to meet the requirements of those who have no previous knowledge of electrical 

 phenomena; it is, therefore, intended to serve as a text-book for the following two classes of students: (1) 

 Those who intend to become wireless operators ; (2) Those who, as amateurs, experiment with wireless 

 telegrai>hy apparatus. 



Quain's Elements of Anatomy* Eleventh Edition. In Four Volumes* 



Vol. II. Part II, Splanchnology. By JOHNSON SYMINGTON, M.D., F.R.S., Professor of Anatomy in 



Queen's University, Belfast. With 349 illustrations. Royal Svo. $3.25 net. 



This part of Quain's Anatomy deals with the topographical Anatomy and the morphology of the digestive, 



respiratory, and genito-urinary systems, and of various bodies situated in the neck, thorax and abdomen, which 



may be grouped together as Ductless Glands, or Organs of Internal Secretion. The text has been thoroughly 



revised and in places rewritten. In addition, a large number of original illustrations have been added to the 



work. 



/iDonograpbs on pb^sics 



The Spectroscopy of the Extreme Ultra-Violet 



By THEODORE LYMAN, Ph.D., Aaaistant Professor of Physics in Harvard University. With Diagrams. 

 Svo. $1.50 net. 



This monograph deals chiefly with that end of the ultra-violet spectrum where the absorption of the air plays 

 a determining role. The first two chapters, however, treat of photometry in the ultra-violet and of the absorp- 

 tion of solids and gases in this well-known region. The study of these phenomena in the extreme ultra- 

 violet may be considered of interest to the general scientific public. 



CATALOGUE OF SCIENCE 



Longmans, Green, & Co. 



BOOKS ON REQUEST 



4th Ave. & 30th St., N. Y. 



Problems of Science 



Bj FEDERI60 ENEIQUES. Authorized 



translation by Katherine Eoyoe, witli 



an Introduction by Josiah 



Eoyoe 



Pp. 300, Svo. Cloth, Price, $2.50 



The author is professor of projective geom- 

 etry in the University of Bologna and is one 

 of the most conspicuous of contemporary 

 Italian scientists. Dr. Eoyoe says "this book 

 is by far the most thorough and synthetic 

 treatment of the problems of scientific me- 

 thodology which belongs to recent years." 



"The work before us is perhaps the most 

 considerable contribution to the discussion 

 since Mill."— The Nation. 



Professor W. B. Smith, Tulane University, 

 says: "I propose to use Enriques's 'Problems 

 of Science' as the basis of a course in scientific 

 philosophy." 



OPEN COURT PUBLISHING CO. 

 CHICAGO 



Ready January First 



An Outline of Psychobiology 



By KNIGHT DUNLAP 



Assistant Professor of Psycliolosy in the 

 Johns Hopkins University 



This book is (as its name indicates), a mere outline, 

 designed to familiarize the student with the basic 

 concepts and elementary details of Psychobiology : 

 The study of " the interrelations of mental life and 

 the living organism" (.Standard Dictionary). 



It is offered as a starting point for the many ele- 

 mentary students of Psychology who have had little 

 or no preparation in biology, and hence are seriously 

 hampered in the reading of the standard physiolog- 

 ical texts. 



CONTENTS 



Chapter I, The Cell. Chapter H, The Adult Tis- 

 sues of the Hiunan Body. Chapter III, Muscular 

 Tissue. Chapter IV, Nervous Tissue. Chapter V, 

 The Afferent and Efferent Neurons. Chapter VI, 

 The Gross Relations of Nerves, Spinal Cord, Brain 

 and other Ganglia. Chapter VII, The Visceral or 

 Splanchnic Division of The Nervous System. Chap- 

 ter Vm, Glands. Chapter IX, The Functional In- 

 terrelation of Receptors, Nevurons, and Effectors. 



Royal Octavo. Cloth. 121 Pages, 77 Cuts. 

 $1.25 



The Johns Hopkins Press 



BALTIMORE, MARYLAND 



