SCIENCE—ADVERTISEMENTS ili 
MONOGRAPHS ON 
EXPERIMENTAL BIOLOGY 
AND GENERAL PHYSIOLOGY 
The publishers take much pleasure in announcing a new series of monographs 
covering the subjects of experimental biology and general physiology. These volumes 
will be under the general editorship of Jacques Loeb, T. H. Morgan, and W. J. V. 
Osterhout. 
The aim and character of the series are indicated by the following announcement 
of the editors 
JACQUES LOEB, T. H. MORGAN AND W. J. V. OSTERHOUT 
The rapidly increasing specialization makes it impossible for one author to cover satisfactorily the 
whole field of modern biology. This situation, which exists in all sciences, has induced English authors to 
issue series of monographs in biochemistry, physiology, and physics. A number of American biologists 
have decided to provide the same opportunity for the study of experimental biology. 
Biology, which not long ago was purely descriptive and speculative, has begun to adopt the methods 
of the exact sciences, recognizing that for permanent progress not only experiments are required but that 
the experiments should be of a quantitative character. It will be the task of this series of monographs to 
emphasize and further as much as possible this development of biology. 
Experimental biology and general physiology are one and the same science, by method as well as 
by contents, since both aim at explaining life from the physicochemical constitution of living matter. The 
series of monographs on experimental biology will, therefore, include the field of traditional general physiology. 
The following is a list of the volumes published or in preparation. 
Published: 
Vol. 1. Jacques Loeb (Rockefeller Institute), “FORCED MOVEMENTS, TROPISMS, AND 
ANIMAL CONDUCT,” Price, $2.50 net. 
In Preparation: 
T. H. Morgan (Columbia University), “THE CHROMOSOME THEORY OF HEREDITY.” 
E. M. East and D. F. Jones (Bussey Institution, Harvard University), “INBREEDING AND OUT- 
BREEDING: THEIR GENETIC AND SOCIOLOGICAL SIGNIFICANCE.” 
H. S. Jennings (Johns Hopkins University), “PURE LINE INHERITANCE.” 
R. Pearl (Johns Hopkins University), THE EXPERIMENTAL MODIFICATION OF THE PROCESS 
OF INHERITANCE.” 
E. S te ey Pa University), “LOCALIZATION OF MORPHOGENETIC SUBSTANCES 
R. G. Harrison (Yale University), “TISSUE CULTURE.” 
W. J. V. Osterhout (Harvard University), “PERMEABILITY AND ELECTRICAL CONDUCTIVITY 
OF LIVING TISSUE.” 
L. J. Henderson (Harvard University), “THE EQUILIBRIUM BETWEEN ACIDS AND BASES 
IN ORGANISM AND ENVIRONMENT.” 
T. B. Robertson (University of Toronto), “CHEMICAL BASIS OF GROWTH.” 
G. H. Parker (Harvard University), “PRIMITIVE NERVOUS SYSTEM.” 
A. R. Moore (Rutgers College), “COORDINATION IN LOCOMOTION.” 
Other volumes are to follow. 
In making this announcement the publishers are looking for the whole-hearted 
cooperation of the scientific men of the country. They solicit correspondence and will be 
glad to book orders for delivery upon publication of the series or individual volumes. 
J. B. LIPPINCOTT COMPANY 
PUBLISHERS East Washington Square, PHILADELPHIA 
CHICAGO BOSTON ATLANTA MONTREAL LONDON 
