ELEMENTS OF GENERAL SCIENCE 



REVISED EDITION 



By OTIS W. CALDWELL, Teachers College, Columbia University, and 

 WILLIAM LEWIS EIKENBERRY, University of Kansas 



8vo, cloth, xii -f- 404 pages, illustrated 



THE original textbook by Caldwell and Eikenberry, published sev- 

 eral years ago, was at once recognized as the first adequate book in 

 the new field of general science. It was only natural, by reason of 

 the extreme care with which the material was developed during six 

 years of classroom experimentation and because of its noteworthy 

 arrangement, its scientific accuracy, its nice balance in presenting 

 each science not from a point of view within itself but in coherent 

 relation to other sciences, and its general applicability to everyday 

 phenomena, that this book should become a preeminent success. 



The need for a revision of this standard book in a new and chang- 

 ing subject is apparent. The authors have gone over the entire work, 

 making notable changes and additions. The logical arrangement of the 

 chapters under five heads The Air; Water and its Uses ; Work and 

 Energy; The Earth's Crust; Life upon the Earth which marked 

 the original edition has been retained, but important chapters have 

 been added on astronomy, electricity, food and nutrition, industry and 

 the arts. There are many new and valuable illustrations, charts, and 

 diagrams, and a list of practical questions heads each chapter. 



A LABORATORY MANUAL IN 

 GENERAL SCIENCE 



By OTIS W. CALDWELL and W. L. EIKENBERRY 

 xi + I 34 pages, with diagrams, bound in cloth or in Biflex Binder 



NINETY-FOUR exercises and some supplementary exercises, pro- 

 viding laboratory work to accompany Caldwell and Eikenberry's 

 " General Science." All the exercises are simple, and in many 

 cases two or three can be covered in a single laboratory period. 

 Only those have been included which through trial have proved 

 their value for use in the first year of high school. Common prob- 

 lems and common materials are made the basis 'of the work. 



GINN AND COMPANY PUBLISHERS 



