TAYLOR. WALTON, & MABERLY. 



THE BOOK OF ALMANACS. 



With Index, by which the Almanac belonging to any 

 year preceding a.d. 2U00 can be found; with means of 

 finding New and Full Moons from B.C. 2000 to a.d. 2000. 

 By AUGUSTUS DE MORGAN, Professor of Mathematics 

 in University College, London. 



Demy 8vo, oblong, price 55. cloth. 



This book will be useful to all who ever want an almanac, past, present, 

 or future ; to clergymen, as a perpetual index to the Sundays and Festivals ; 

 to lawyers, in arranging evidence which runs over a long period, and to 

 courts of law in hearing it ; to historical and antiquarian inquirers, in 

 testing statements as to time and date; to all, in fact, who are ever required 

 to interest themselves about time, past or future. 



REICHENBACH'S RESEARCHES ON 



MAGNETISM, ELECTRICITY, HEAT, LIGHT, 

 CRYSTALLISATION, AND CHEMICAL ATTRAC- 

 TION, in their relation to the Vital Force. Translated 

 and Edited, at the express desire of the Author, with a 

 Preface, Notes, and Appendix, by WILLIAM GREGORY, 

 M.D., F.R.S.E., and Professor of Chemistry in the Univer- 

 sity of Edinburgh. 



With Three Plates, and Twenty-three Woodcuts. 8vo, cloth, 125. 6d. 



This is the only Authorised English Edition of Baron Beichenbach' 's Work. 



u The merits of this remarkable volume are great. The pains-taking, 

 conscientious, cautious, ingenious, we had almost said, the religious, and 

 certainly the self-possessed enthusiasm with which the experimental clue is 

 followed from turn to turn of the labyrinth, is surpassed by nothing of the 

 same sort in the whole range of cotemporary science/'— Xorih British Review. 



DISEASES OF THE HEART AND 



LUNGS, THEIR SYMPTOMS, AND TREATMENT. 

 By W. H. WALSHE, M.D., Professor of the Principles 

 and Practice of Medicine in University College, London ; 

 Physician to University College Hospital, and Consulting 

 Physician to the Hospital for Consumption and Diseases 

 of the Chest. 



One volume, 12s. 6d. cloth. 



"This work is what its name indicates it to be, eminently practical. It 

 is far in advance of any other treatise on diseases of the chest either in this 

 or any other country. To the practitioner, the clinical teacher, and the 

 student, this work will prove alike invaluable.' 1 — Medical T 



