WALTON AND MABERLY. 



DR. LARDNER'S MUSEUM (Continued) :- 



VOL. III., PART IX., price 6rf. 



38. The Electric Telegraph. Chap. V. 

 3D. The Electric Telegraph. Chap. VI. 



35. The Electric Telegraph. Chap. III. 



26. Terrestrial Heat. Chap. II. 



37. The Electric Telegraph. Chap. IV. 



This work is continued in Weekly Numbers at Id., in Monthly Parts 

 at 5d., and Quarterly Volumes at Is. 6d., in Ornamental Boards. 



Book Of Natural PhilOSOphy I or, an Introduction to the Study of 

 Statics, Dynamics, Hydrostatics, and Optics, with numerous examples. By 

 SAMUEL NEWTH, M.A., Fellow of University College, London. 12mo, 3a. Qd. 



Handbook of Natural Philosophy and Astronomy. By DIONYSIUS 



LARDNER, formerly Professor of Natural Philosophy and Astronomy in Univer- 

 sity College, London. Three Vols., large 12mo, with very numerous Illustra- 

 tions on Wood. 



FIRST COURSE, One Vol., 12*. 6d. cloth, contains : Mechanics; Hydro- 

 statics; Hydraulics ; Pneumatics ; Sound ; Optics. 



"We have much pleasure in recommending Dr. Lardner's 'Handbook of 

 Natural Philosophy ; ' it is one of the best popular scientific works that has yt 

 appeared." English Journal of Education. 



" Our examination of the work leads us to speak most favourably of it as 

 handbook for students ; it will be a useful addition to the library of every 

 medical student, as wall as a serviceable guide to all who are about to commence 

 the study of physics." Medical Gazette. 



SECOND COURSE, One Vol., 8*. 6d., contains: Heat ; Common Elec- 

 tricity ; Magnetism ; Voltaic Electricity. 



THIRD COURSE, One Vol., 16s. 6d., contains : Astronomy and 

 Meteorology. With 37 Plates and 200 Woodcuts. 



*** Any volume may be purchased separately. 



CURRENCY. 



A CATECHISM Of the Currency. By JOHN TAYLOR. Third Edition, 

 12mo, 2*. 



A Catechism of the Foreign Exchanges. By JOHN TAYLOR, second 



Edition, 12mo, 2*. 



A View of the Money System of England. By JAMES TAYLOR. 



8vo, 3s. sewed. 



MATHEMATICS, &c. 



JJLEMENTS Of Arithmetic. By AUGUSTUS DE MORGAN, Professor of Mathe- 

 matics in University College, London. Fifth Edition, with Eleven Appendixes 

 Royal 12mo, 5*. cloth. 



3)C Morgan's Elements Of Algebra. Preliminary to the Differential 

 Calculus. Second Edition. Royal 12mo, 9*. cloth. 



