Eugenics Laboratory Publications — (cont.). 
binding can be purchased at 2s. 9d. with impress of the bust of Sir Francis Galton. A photo- 
graph (11" X 13") of Sir Francis Galton by the late Mr Dew Smith can be obtained by sending a 
postal order for 10.s. del. to the Secretarj- to the Laboratory, University College, London, W.C. 
LECTURE SERIES. Price Is. net each {Nos. Ill and X excepted). 
I. The Scope and Importance to the V. 
State of the Science of National Eugenics. 
By Karl Pearson, F.E.S. Third Edition. VI. 
II. The Groundwork of Eugenics. By Karl 
Pearson, F.R.S. Second Edition. 
III. The Relative Strength of Nurture and VII. 
Nature. Much enlarged Second Edition. 
Part L The Relative Strength of Nurture 
and Nature. (Second Edition revised.) By VIII. 
Ethel M. Elderton. Part IL Some Recent 
Misinterpretations of the Problem of N\irture IX. 
and Nature. (Fii'st Issue.) By Karl Pear- 
son, F.R.S. Price 2.S. net. 
IV. On the Marriage of First Cousins. By X. 
Ethel M. Eldektox. 
The Problem of Practical Eugenics. 
By Karl Pearson, F.R.S. Second Edition. 
Nature and Nurture, the Problem of 
the Future. By Karl Pearson, F.R.S. 
Second Edition. 
The Academic Aspect of the Science 
of National Eugenics. By ICarl Pearson, 
F.R.S. 
Tuberculosis, Heredity and Environ- 
ment. By Kart, Peaks(jn, F.R.S. 
Darwinism, Medical Progress and Eu- 
genics. The Cavendish Lecture, 1912. By 
Karl Pearson, F.R.S. 
The Handicapping of the First-born. 
I'.y Karl Pearson, F.R.S. I'n'<'<' 2s. net. 
The following work prepared in the Biometric Lahoratory can he 
obtained as a Government Report from Messrs Wyman and Sons, Ltd, 
The English Convict, A Statistical Study. By Charles Goring, M.D. 
Text. Price 9s. Tables of Measurements (printed by Convict-Laboui-). Price 5s. 
THE UNIVERSITY OF CHICAGO PRESS 
THE ORIGIN OF THE EARTH. (The University of Chicago Science 
Series.) By Thomas Chrowder Chamberlin, Head of the Department 
of Geology in the University of Chicago. 
xii + 272 pp. 12mo. Cloth. 65. net. 
This book, by one of the leading geologists of the world, sets forth the disclosures that led to the 
rejection, one after another, of the older views of the origin of our planet, the futile attempts then 
made to emend these or to build others upon the same foundations, the final rejection of all these, and 
the construction of a radically new view based on a new dynamic foundation. The later chapters of 
the book treat of the early stages of the earth and of the way in which its leading processes took their 
start from their cosmogonic antecedents, these being held to be essential factors in the genesis of the 
planet. The beginning of the inquiry is set forth in the Intioduotion; the successive chapters are 
entitled: "The Gaseous Theory of Earth-Genesis in the Light of the Kinetic Theory of Gases"; 
" Vestiges of Cosmogonic States and Their Significance" ; " The Decisive Testimony of Certain Vestiges 
of the Solar System"; "Futile Efforts"; "The Forbidden Field"; "Dynamic Encounter by Close 
Approach " : " The Evolution of the Solar Nebula into the Planetary System " ; " The Juvenile Shaping 
of the Earth"; "Inner Reorganization of the Juvenile Earth"; "Higher Organization in the Great 
Contact Horizons." 
SENESCENCE AND REJUVENESCENCE. By Charles Manning 
Child, Associate Professor of Zoology in the University of Chicago. 
xii +482 pp. 8vo. Cloth. 16s. net. 
The author of this volume^ after some fifteen years of experimental investigation of the nature and 
origin of the organic individual, has established certain facts which atford a more adequate foundation 
for the general consideration and interpretation of the age changes in the organic world than we have 
hitherto possessed. 
Certain experimental methods have made it possible not only to follow the physiological age 
changes in some of the lower animals, but to learn something of their nature. The most unportant 
result of the investigation is the demonstration of the occurrence of rejuvenescence quite independently 
of sexual reproduction. The book differs from moft previous studies of senescence in that it attempts 
to show that in the organic world in general rejuvenescence is just as fundamental and important 
a process as senescence. 
The Cambridge University Press 
Agents for the British Empire 
London, Fetter Lane, B.C. 4 
