AN ELEMENTARY TEXT- 
BOOK OF THEORETICAL 
MECHANICS 
By GEORGE A. MERRILL, B.S., Principal of the 
California School of Mechanical Arts, and Director of 
the Wilmerding School of Industrial Arts, San Francisco 
MERRILL'S MECHANICS is intended for the upper 
classes in secondary schools, and for the two lower 
classes in college. Only a knowledge of elementary 
algebra, plane geometry, and plane trigonometry is required 
for a thorough comprehension of the work. 
^[ By presenting only the most important principles and 
methods, the book overcomes many of the difficulties now 
encountered by students in collegiate courses who take up 
the study of analytic mechanics, without previously having 
covered it in a more elementary form. It treats the subject 
without the use of the calculus, and consequently does not 
bewilder the beginner with much algebraic matter, which 
obscures the chief principles. 
^j The book is written from the standpoint of the student 
in the manner that experience has proved to be the one 
most easily grasped. Therefore, beyond a constant endeavor 
to abide by the fundamental precepts of teaching, no one 
method of presentation has been used to the exclusion of 
others. The few necessary experiments are suggested and 
outlined, but a more complete laboratory course can easily be 
supplied by the instructor. 
^[ The explanation of each topic is followed by a few well- 
chosen examples to fix and apply the principles involved. A 
number of pages are devoted to the static treatment of force, 
with emphasis on the idea of action and reaction. Four- 
place tables of the natural trigonometric functions are included. 
AMERICAN BOOK COMPANY 
C73) 
