28 SCIENCE. 



First Book in Geology. 



By N. S. Shaler, Professor of Paleontology, Harvard University. $% by 

 *] x / 2 inches. Cloth, xvii+255 pages, with 130 figures in the text. 74 pages 

 additional in Teacher's Edition. Price by mail, $1.10; Introduction, $1.00. 



npHE design of this book is to give the student from ten to fifteen 

 years of age a few, clear, well-selected facts that may serve as a 

 key to the knowledge of the earth. The number of facts dealt with 

 is far less than is usually given in such books, but pains is taken in 

 their presentations to make them open the way to the broadest veins 

 that the science affords. The aim is to illustrate the principles of 

 geology by reference to as many facts of familiar experience as pos- 

 sible. 



The first part of the book treats of the simpler phenomena of a 

 physical sort, the movements of the water and the air, and their effect 

 on the machinery of the earth's surface ; then the simpler underground 

 actions are taken up, such as the formation of veins, the folding of 

 mountains, and the forces that lead to earthquakes and volcanoes. 

 The latter half of the book is given to the history, in outline, of the 

 earth's organic life. This is treated in a very general way, in order to 

 show the student only the great steps of advance, and the method in 

 which they are accomplished. 



In the appendix is a brief account of certain more important mineral 

 species, arranged to give the student an outline of mineralogy, and 

 some idea of the common uses of minerals. 



The Teacher's Edition contains seventy-four pages of directions for 

 those who use the book in class instruction. First there are general 

 directions for the guidance of teachers in their work in natural history, 

 then each chapter of the book is taken up in turn, and the instructor is 

 told how to supplement each lesson, by reference to facts that may be 

 easily accessible in the nature about the school. 



The instructor who will make proper use of these pages will always 

 find it possible to enliven the printed page with many an illustration of 

 value to his students. And the average reader who desires to get a 

 glance at geology and a general notion of its bearings on ordinary life, 

 will find this edition of exceeding interest. It is being used in many 

 schools as a Supplementary Reader, and is admirably adapted for such 

 purpose. 



