The Microscope. 117 



the less so from the fact that they were drawn from nature and 

 engraved by the accomplished wife of the author. 



No microscopist's library can be considered at all complete 

 without this valuable work. 



A Complete Guide to the Use of the Microscope in Botanical 

 Research. By Dr. Julius Wilhelm Behrens. Translated and 

 edited by Rev. A. B. Hervey, A. M., assisted by R. H. Ward, M. 

 D., F. R. M. S. Illustrated with 13 plates and 153 cuts. S. E. 

 Cassino & Co., Boston. 1885. Large 8vo. pp. 466. Price $5.00. 



This is the only work in any language which undertakes to 

 cover the whole field of histological research in botany and does 

 it with a thoroughness and completeness characteristic of the 

 work of all first-class German naturalists. 



It begins with a brief account of the microscope itself, its 

 use and care, and gives a plain description of all necessary 

 accessory apparatus, particularly such as are needful in the sev- 

 eral departments of microscopical measuring, drawing, photog- 

 raphy and spectroscopy, also of the tools, and manipulations, 

 and of the best preserving, staining, mounting and other fluids 

 and media for the preparation and permanent mounting of 

 micro-botanical specimens. 



It enumerates and describes the preparation and applica- 

 tion of all tested and accredited re-agents used in the micro- 

 scopical investigation of vegetable elements and finally it gives 

 at length, and in full practical detail, all the best methods of 

 investigation with reference to each of these substances. 



We have frequently called attention to this promised work 

 as one that would be very welcome " when it should finally 

 come from the press of this well known Boston firm." The 

 book is now before us and all workers in " botanical research " 

 will hasten to avail themselves of it. 



Comparative Anatomy op the Phanerogams and Ferns. By 

 Dr. A. DeBary, Professor in the University of Strassburg. Trans- 

 lated ,by F. O. Bower and D. H. Scott. Illustrated with 242 cuts. 

 Large 8vo. pp. 660. Price $5.50. 1884. MacMillan and Co., New 

 York. 



This work is of the utmost value to students of botany. It 

 treats, in a most exhaustive manner, of the various forms of 

 vegetable tissues, their origin, development, modifications and 



