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. 
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 founda- 
tion. 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 cos- 
mogonic antecedents, these being held to be essential factors in the genesis 
of the planet. The beginning of the inquiry is set forth in the Introduction ; 
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." 
xii+ 272 pages, 12mo, cloth; 6s net. 
Individuality in Organisms. (The University of 
Chicago Science Series.) By Charles Manning 
Child, Associate Professor of Zoology in the Uni- 
versity of Chicago. 
Professor Child's work is an attempt to state, and to present evidence 
in support of, a conception of the nature of organic individuahty which the 
author has developed as a result of fifteen years of investigation of the pro- 
cesses of reproduction and development in the lower animals. In these 
forms, organic individuality appears in relatively simple terms, and it is 
here that we must look for the key to the problem of individuality in the 
higher animals and man. 
The author has addressed himself with remarkable success to showing 
the wide range of applicability of the conception of individuality of various 
fields, with the result that the book appeals not only to the physiologist 
and to the botanist, but also to the neurologist, to the psychologist, and even 
to the sociologist. 
x+212 pages, small 12mo, cloth; 5s net. 
The Cambridge University Press 
Agents for the British Empire 
London, Fetter Lane 
