66 THE AMEEICAN MONTHLY [Fab 



longer or shorter. His classification of bacteria, following 

 Migula is : (1) Bacilli, — motile rodshaped organisms with 

 flagella attached to all parts of the body ; (2) Pseudo- 

 monas, — such organisms with polar flagella ; (3) Bacteria, 

 — the same without any flagella at all. 



Histology. — E. K. Dunham, M. D. professor in Bellevue 

 Hospital College has just published a text book of Normal 

 and Morbid Histology but some of the medical journals 

 criticise it. Messrs Lea Brothers & Co have not yet sent 

 us a copy for review. 



Text Book of Histology. — Including the Microscopic 

 Technic. By Dr. Phillip Stohr. Edited with Additions by 

 Dr. Alfred Schaper. Royal 8vo., pp. 424, with 292 Illustra- 

 tions. P. Blakiston's Son & Co. 1898. Price $3.00. 



Thisbookis written in a very systematic manner. Begin- 

 ning with the purely microscopic technic of the prepara- 

 tion of sections, the author then enters upon microscopic 

 anatomy proper. In this part the microscopic anatomy of 

 the cells and the tissues is taken up. Then follows that of 

 the organs, including the various systems and the organs 

 of the special senses. The blood is very well and thorough- 

 ly handled, as also the lymphatic system. The nervous 

 system requires quite a share of attention. Nerve cells 

 are considered too ; dendrites have no notice accorded to 

 them. In fact, the author very properly deals only with 

 those subjects which are established and capable of dem- 

 onstration and not with theories and late advances not yet 

 universally accepted and proven. 



DRUG AND FOOD ADULTERATION. 



How to Study Drugs. — Acquaintance with the anatomy 

 of flowering plants obtained by practical work with the mi- 

 croscope is an essential to the acquisition of a sound 

 knowledge of the histology of drugs. In order to obtain 

 this the student should first make himself thoroughly fa- 

 miliar with the various kinds of cells and vessels and the 

 tissues which they form— epidermis, cork, fundamental 



