1880.] 



MICEOSCOPICAL JOURNAL. 



87 



progress wliatever in naming mi- 

 croscopic objects, unless we are 

 willing to work carefully and slowly 

 at first, until we become familiar 

 with the characters of the classes 

 and families, after which we may 

 make out the genera and species. 



If the student desires to name 

 diatoms, perhaps the best advice we 

 can give him is to prepare to buy a 

 library of books on the subject, and 

 we doubt if he could name them 

 even then — especially the "com- 

 mon" forms. 



New Microscopes and Acces- 

 sories. 



The stand which we illustrate this 

 month is the latest design of Mr. 

 W. II. Bulloch, of Chicago, which 

 he calls the " Biological Stand." 

 We have not seen the stand, and 

 only know of it from the illustra- 

 tration and a written description 

 from the maker. 



In this stand Mr. Bulloch has 

 arranged the sub-stage and mirror 

 in such a manner that they can he 



Fig. i8. 



