NOW READY. 
ILLUSTRATED WITH LITHOGRAPHS. 
Bound in Cloth, 8 vo., $2.00. 
To be obtained direct from the author, 
AUGUSTUS FENDLER, 
Wilmington, Delaware, U. S. 
Please remit price of book in Post Office Money Order or, where these cannot be obtained, 
in Registered Letters. 
The book is replete with original conceptions and new ideas concerning 
the most important topics in physical science. It analyzes things that, so 
far, have been considered as absolutely simple and ultimate. It points out 
the cause ol gravitation, and of molecular repulsion; the nature of heat, light, 
magnetism, chemical affinity, and muscular energy ; the source of heat in 
the sun ; and the three ultimate primary powers that are at the bottom of 
all phenomena, of all motions, and of all the mechanical work done in the 
universe. It contains sketches of the probable state of the /^-phenomenal 
and of the development of the phenomenal universe. An answer is also 
proposed to the question that is repeated by every searching student of na¬ 
ture with regard to the economy of the universe, viz : what becomes of all 
the immense stores of heat continually emanating not only from our sun, 
but from millions upon millions of similar suns, called fixed stars. It treats 
of the constitution of the sun, the conservation and correlation of forces, 
and their conversion of one mode into another, and deduces the impending 
fate of all celestial orbs. 
An attempt is also made of conveying to the mind of the reader a definite 
idea and a more substantial conception of what has generally been indi¬ 
cated by amere name, such as "Supreme Being,” “FirstCause," &c.,and of 
delineating what has been styled “the greatest mystery of the universe,” 
enveloped according to some, in a flood of light, according to others in im¬ 
penetrable darkness. 
This little work may be recommended not only to the more philosophic 
of naturalists and physicists, but also to those speculative philosophers who 
are conversant with science, and to minds of intelligence generally, who 
are in search of the ultimate causes of nature ; all will find in these pages 
abundance of material for reflection. 
AUGUSTUS FENDLER. 
Wilmington, Delaware. 
