2 WORKS PUBLISHED BY WALTON AND MABERLY. 



DR. LARDNER'S WORKS. 



I. 



HAND-BOOK OF NATURAL PHILOSOPHY AND 

 ASTRONOMY, 



FIRST COURSE. 12*. 6d. cloth. 



MECHANICS HYDROSTATICS HYDRAULICS PNEUMATICS SOUND OPTICS. 



SECOND COURSE. Ss. Qd. cloth. 



HEAT COMMON ELECTRICITY MAGNETISM VOLTAIC ELECTRICITY. 



THIRD COURSE. 16s. 6d. cloth. 



METEOROLOGY ASTRONOMY. 



Each course is complete in itself. 



The principles of the Physical Sciences are in this work developed and 

 demonstrated in ordinary and popular language, so that a competent 

 knowledge of methods and results may be obtained without any unusual 

 mathematical knowledge. The series has been composed with a view 

 of affording that amount of information on the several subjects com- 

 prised in it which is demanded by the student in law and in medicine, by 

 the engineer and artisan, by youths preparing for the University, and by 

 those who, having already entered on the active business of life, are still 

 desirous to sustain and extend their knowledge of the general truths of 

 physics, and of those laws by which the order and stability of the material 

 world are maintained. 



"These volumes occupy a remarkable place in literature. While on the one 

 hand they are examples of the extreme simplification of which the statement of the 

 laws by which natural phenomena are regulated is capable, on the other they are 

 illustrations of the care and method with which the true philosopher invariably 

 treats the truths of science. In our opinion, the author has done very season- 

 able and lasting service by the publication of them. Nor is this our conviction 

 alone, but one that we find very prevalent among those who are peculiarly iden- 

 tified with the interests of physical science in this country." Mechanics' Magazine. 



II. 



TREATISE ON THE STEAM-ENGINE, STEAM NAVI- 

 GATION, ROADS AND RAILWAYS, 



ILLUSTRATED WITH WOOD ENGRAVINGS. 8th Edition. 8s. 6d. cloth. 



This work is intended to convey to the general reader that degree of 

 information respecting steam power and its principal applications, which 

 well-informed persons desire to possess. It is written in language divested 

 of mathematical and mechanical technicalities, so that the details of the 

 machinery, and the physical principles on which they depend, will be 

 intelligible to all persons of ordinary education. 



