166 The Microscope. 



The Elements of Botany. By W. A. Kellerman, Ph. D., Pro- 

 fessor of Botany in the Kansas State Agricultural College. Co- 

 piously illustrated, pp. 360. Price $1.50. John E. Potter & Co., 

 617 Sansom St., Philadelphia. 1885. 



This work embraces organography, vegetable physiology, 

 systematic botany, histology, etc. About fifty pages are de- 

 voted to the microscopic structure of plants, and to the vegeta- 

 ble cell. The author speaks of this as " the new departure," 

 but it can hardly be called such when we consider that all the 

 more standard works on botany devote even more space in pro- 

 portion than is given here to " the minute anatomy or histology 

 of plants." In fact, no botanist would think of issuing a work 

 without more or less prominence to this particular branch, and, 

 we are ready to add, the more prominence given to it, so much 

 the more welcome and valuable will be the book. While a 

 large number of the illustrations are new, still their value 

 would be much greater if both the artist and the engraver had 

 shown more skill. Taken as a whole the work will rank as a 

 fair exponent of elementary botany. We will be glad when 

 Prof. Kellerman gives us a book devoted entirely to Yegetable 

 Histology. 



The Technology of Bacteria Investigation. By Charles S. 

 Dolley, M. D. 8 vo. pp. 260. Price $2.00. S. E. Cassino & Co. 

 Boston. 1885. 



Dr. Dolley gives us explicit directions for the study of Bac- 

 teria, their culture, staining, mounting, etc., according to the 

 , methods employed by the most recent investigators. The work 

 comes from an earnest student in this branch of scientific re- 

 search and will be of inestimable value to all interested in the 

 facts concerning Bacteria. Dr. Dolley is now at work at the 

 Naples Zoological Station and that he is doing most excellent 

 work there is no question. The most complete and explicit di- 

 rections are given for the study of living forms, the preparation 

 of fixed and hardened forms, culture experiments, and inocula- 

 tion experiments. Special methods are given for investigating 

 Pathogenic Bacteria, and a large number of formulae close the 

 work. It is suflicient to say that any one trying to do work in 

 this field will be very unwise to continue longer without a copy 

 of this book by his side. It is clear, concise, and complete. 



