MESSRS. MACMILLAN & CO.'S PUBLICATIONS. 



WORKS BY THE SAME AUTHOR. 



MICRO-ORGANISMS AND DISEASE. An Introduction into 

 the Study of Specific Micro-Organisms. Illustrated. Third Edition, 

 Revised. Crown 8vo. 6s. 



ACADEMY : — "No present line of medical research is so likely to prove 

 fraught with benefit of diminishing disease and spreading health as that to which 

 Dr. Klein's little book offers an introduction, lucid and concise. . . . Dr. Klein's 

 exposition is specially opportune as offering to the general public, in the few clear 

 pages of an authority and expert, a short and safe way out of the tangle of diverse 

 opinion. When, as here, the authority of experience is modest, and skill is 

 tentative and cautious, they have most weight. This book in a marked degree 

 shows these to be the graces of its author as an observer and teacher, and the 

 discovery increases one's previous sense of his trustworthiness." 



S A TURD A V REVIEW :—" By far the most important book among those 

 relating to matters of health and disease which are now before us is that of Dr. 

 Klein on Micro-Organisms. . . . Dr. Klein is well known as a first-rate observer 

 and careful reasoner, and has, moreover, for many years given untiring study to 

 the questions which he now handles. He is therefore fully qualified to give, as 

 he here does, a succinct account of what is known regarding this difficult matter. . . . 

 Dr. Klein's book, while mainly intended for the expert, is written with sufficient 

 clearness to be of considerable interest to all who' may wish to know what is being 

 done regarding the important question of the germ-origin of disease." 



THE BACTERIA IN ASIATIC CHOLERA. Crown 8vo. 53. 



LANCET: — " No single observer has contributed more to the knowledge on 

 this subject than Dr. Klein, and the work before us is -. thoroughly scientific 

 exposition of it in all its bearings ... a perusal of his book cannot fail to leave 

 the impression that there is still much to be learnt concerning cholera and its 

 relationship to bacterial life." 



MANCHESTER GUARDIAN :— "Tit. Klein is one of our best English 

 bacteriologists, and in this book any one interested in the subject will find the 

 clearest description of the delicate experiments made to prove the nature of the 

 comma-bacilli. There is throughout the volume the tone that should pervade all 

 scientific works, of candid acknowledgment of the work and opinions of opponents, 

 and at the same time of determination to subject their conclusions to the most 

 rigorous and searching tests. " 



VIENNA WEEKLY NEWS:— "Vtoie&5ot Klein's criticism, which is 

 absolutely free from personalities, is based on the results of careful microscopical 

 and bacteriological examinations carried on, for many years, in England and India. 

 The book contains a full synopsis of the present state of the etiology of cholera, 

 and being written in a clear style, will initiate the student into the study of bac- 

 teriology. It will, moreover, be a valuable guide to beginners by showing them 

 how cautious one must be in drawing conclusions especially in bacteriological 

 matters. By a number of excellent illustrations the publishers have added to 

 the special features of the book, which is sure to obtain a large circulation in the 

 medical world." 



MACMILLAN AND CO., LONDON. 



