CURRENT LITERATURE. 
BOOK REVIEWS. 
Bacteriology. 
THE American edition of Muir and Ritchie’s well-known Manual of 
Bacteriology, edited by Dr. N. McL. Harris, is a worthy representative of 
American bacteriology. The manual, designed primarily for medical students, 
has been greatly improved by Dr. Harris by additions at points where the 
previous English editions were lacking. The increase in size to octavo and 
the introduction of a number of new illustrations, including some pho- 
tomicrographs of excellent typographical execution, add much to the general 
appearance of the book, while the enlarging of the chapters on methods 
brings the manual nearer to the student as a source of practical information 
on laboratory technique. 
e importance of sanitary bacteriology is iia ara by the introduction 
of a new section on “ Bacteria in air, soil and water.”” The increasing scope 
of bacteriological examinations in preventive medicine would perhaps war- 
rant even more extensive consideration than is accorded to the subject. The 
chapters on the special diseases have been revised to include our more recent 
knowledge of bacterial etiology and diagnosis, and the theories segarding 
immunity are set forth in so lucid a manner that the student should obtain a 
most excellent working basis for further study. 
As in previous editions, the style of the manual is interesting and the 
reader is more than ever impressed with the author’s conception of bacteri- 
ology as an organic part of pathology and medicine.— E. E. IRons. 
MINOR NOTICES. 
VON WETTSTEIN? has recently peel a second paper on Neo- 
Lamarckian principles in relation to Darwinism. His position is a some- 
= B: M. 
Trees and Shrubs, number 2, by Charles S. Sargent,3 was issued in May, 
1903, and contains illustrations of two species of Guatteria from Central 
discussed in relation to one another and to the mutation theory of DeVries. 
DAVIS, 
*Muir and RITcHIE, Manual of Bacteriology. 8vo. pp. xx + 565. New York: 
The Macmillan Company. 1903. $3.50. 
w# WETTSTEIN, R. von, Der Neo = aage und seine Beziehungen zum Dar- 
winismus. pp. 30. Jena: Gustav Fischer. 1903. M41. 
3SARGENT, C. S., Trees and — pt. II, pp. 51-99. pls. 26-50. Boston and 
New York: Houghton, Mifflin & Co. 1903. $5.00 
[JULY 
