The University of Cliicago 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 aU these, and the construction of a radically new vievv 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 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 For- 

 bidden Field"; "Dynamic Encounter by Close Approach"; "The Evolution of the 

 Solar Nebula into the Planetary System"; "The Juvenile Shaping of the Earth"; 

 " Inner Beorganization of the Juvenile Earth " ; " Higher Organization in the Great 

 Contact Horizons." 



xii-i-272 pages, 12mo, cloth; 6s. net. 



SENESCENCE AND REJUVENESCENCE 



By Charles Manning Child, Associate Professor of Zoology in the 

 Univei-sity of Chicago. 



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 afford 

 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 physio- 

 logical age changes in some of the lower animals, but to learn something of their nature. 

 The most important result of the investigation is the demonstration of the occurrence of 

 rejuvenescence quite independently of sexual reproduction. The book differs from most 

 previous studies of senescence in that it attempts to shew that in the organic world in 

 general rejuvenescence is just as fundamental and important a process as senescence. 



xii•^482 pages, 8vo, cloth; 16s. net. 



INDIVIDUALITY IN ORGANISMS 



(The University of Chicago Science Series) 



By Charles Manning Child. 



Professor Child's work is an attempt to state, and to present evidence in support of, 

 a conception of the nature of organic individuality which the author has developed as a 

 result of fifteen years of investigation of the processes 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 shewing the wide range 

 of applieabiUty of the conception of individuality to various fields, with the result that 

 the book appeals not only to the physiologist and to the botanist, but also to the neuro- 

 logist, 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, E.C. 4 



