SILLIMAN MEMORIAL LECTURES 
PUBLISHED BY YALE UNIVERSITY PRESS 
ELECTRICITY AND MATTER. By Joseru Joun THOMSON, D.SC., LL.D., 
PH.D., F.R.S., Fellow of Trinity College, Cambridge; Cavendish 
Professor of Experimental Physics, Cambridge. 
(Fourth printing.) Price $1.25 net. 
THE INTEGRATIVE ACTION OF THE NERVOUS SYSTEM. By 
Cuar.es S. SHERRINGTON, D.SC., M.D., HON. LL.D. TOR., F.R.S., Holt Pro- 
Fessor of Physiology, University of Liverpool. 
(Fourth printing.) Price $3.50 net. 
RADIOACTIVE TRANSFORMATIONS. By Ernest RUTHERFORD, D.8C., 
LL.D., F.R.S., Macdonald Professor of Physics, McGill University. 
Price $3.50 net. 
EXPERIMENTAL AND THEORETICAL APPLICATIONS OF THER- 
MODYNAMICS TO CHEMISTRY. By Dr. Watruer Neanst, Pro- 
fessor and Director of the Institute of Physical Chemistry in the 
Oniversity of Berlin. 
Price $1.25 net. . 
PROBLEMS OF GENETICS. By Witiiam BarEson, M.A., F-R.8., Director 
of the John Innes Horticultural Institution, Merton Park, Surrey, 
England. 
(Second printing.) Price $4.00 net. 
STELLAR MOTIONS. With Special Reference to Motions Determined 
by Means of the Spectrograph. By Witt1am WaLLace CaMPBELL, SC.D., 
LL.D., Director of the Lick Observatory, University of California. 
Price $4.00 net. 
THEORIES OF SOLUTIONS. By Svanrz ARRHENIUS, PH.D., SC.D., M.D., 
Director of the Physico-Chemical Department of the Nobel Institute, 
Stockholm, Sweden. 
(Third printing.) Price $2.25 net. 
IRRITABILITY. A Physiological Analysis of the General Effect of 
Stimuli in Living Substances. By Max VERWORN, M.D., PH.D., Pro- 
Sessor at Bonn Physiological Institute. 
(Second printing.) Price $3.50 net. 
PROBLEMS OF AMERICAN GEOLOGY. By Wiut1am Norts Rice, 
Frank D. Apams, ARTHUR P. CoLEmMAN, CHARLES D, WALCOTT, WALDEMAR 
Linperen, Freperick Lestiz RaNsomMg, AND WILLIAM D, MATTHEW. 
Price $4.00 net. 
THE PROBLEM OF VOLCANISM. By Josern Paxson IpprNas, PH.B., 
Sc.D. 
Price $5.00 net. 
ORGANISM AND ENVIRONMENT AS ILLUSTRATED BY THE 
PHYSIOLOGY OF BREATHING. By Joun Scotr HaupDane, M.D., 
LL.D., F.R.8., Fellow of New College, Oxford. 
Price $1.25 net. 
