(terse of ftatitral 



Four Volumes. 20s. cloth. 



HANDBOOK QP NATURAL PHILOSOPHY. 



BY DIONYSIUS LAIIDNER, D.C.L., 



formerly Professor of Natural Philosophy and Astronomy in University Collttje, London, 



New Edition, Revised and greatly Enlarged, with several hundred additional 

 Illustrations. Large 12mo. Four Volumes, each 5s., cloth lettered. 



This work is intended for the general reader who desires to attain accurate 

 knowledge of the Various departments of physical science, without pursuing 

 them according to the more profound methods of Mathematical Investigation. 

 Hence the style of the explanations is studiously popular, and the graver 

 matter is everywhere accompanied by diversified elucidations and examples, 

 derived from common objects, wherein the principles of science are applied to 

 the purposes of practical life. 



It has also, specifically, been the author's aim to supply a manual of such 

 physical and mechanical knowledge as is required by the Medical and Law 

 Student, the Engineer, the Artisan and the superior classes in Schools. 



Great pains have been taken to render this work complete in all respects, 

 and co-extensive with the actual state of the sciences, according to the latest 

 discoveries. 



Although the principles of the sciences are here, in the main, developed and 

 demonstrated in ordinary and popular language, a few mathematical symbols 

 are occasionally used throughout the work, for the purpose of expressing results 

 more clearly and concisely. These, however, are never employed without a 

 previous ample explanation of their signification. 



The present edition has been enlarged by the interpolation of a great number 

 of illustrations of the general principles of Physics, taken from their various 

 applications in the Arts, such examples being in all cases elucidated by 

 appropriate engraved figures of the instruments and machines described. Many 

 improvements have also been introduced in the Diagrams for the illustration 

 of Physical Principles, the number of which has been greatly augmented. 



The series consists of Four Treatises, which are independent of each other, 

 and may be purchased separately. 



Mechanics One Volume. 5s. 



Hydrostatics, Pneumatics, and Heat , One Volume. 5s. 



Optics One Volume. 5s. 



Electricity, Magnetism, and Acoustics . One Volume. 5s. 



The Four Volumes taken together form a complete course of Natural 

 Philosophy, sufficient not only for the highest degree of School Education, but 

 for that numerous class of University Students who, without aspiring to the 

 attainment of Academic honours, desire to acquire that general knowledge of 

 these Sciences which is necessary to entitle them to graduate, and, in the 

 present state of society, expected in all well-educated persons. 



The Hand -Book of Astronomy. 



In Two Volumes, each 5*. forming a companion to the "Hand -Book of Natural 

 Philosophy." Vol I. on the 1st of September, and Vol. II. on the 1st of 

 October 1856. 



LONDON: WALTON & MABERLY, 



WKRTI1EIMER AND CO., TYPP. 



