THE AMERICAN 



MONTHLY 



MICROSCOPICAL JOURNAL 



Vol. it. 



New York, July, 1881. 



No. 7. 



Notes on Microscopical Tech- 

 nology. 



BY C. E. HANAMAN. 

 I. 



The journals devoted to microscop- 

 ical subjects literally teem, now-a- 

 days, with articles on microscopical 



Fig. 25. 



technology. Old devices are rein- 

 vented or slightly modified, and, in 

 spite of editorial vigilance, are pub- 

 lished as new, together with a multi- 

 tude of methods of preparation, etc., 

 many of which can be successfully 

 used by none but their inventors, 

 owing to the fact that they have not 

 been thoroughly tested by their au- 

 thors, or because minor, but neverthe- 

 less essential, details of their applica- 

 tion, have been omitted. 



In view of these facts, it is with 

 much hesitancy that I submit the fol- 

 lowing devices and methods of work. 

 I believe them to be new ; and a 

 number of persons to whom they 

 have been shown have found them 

 useful, I submit them, however, for 

 what they are worth, hoping that 



Fig. 26. 



some of the readers of this Journal, 

 besides myself, may be helped in 

 their work by their use. If they are 

 old, and have, by some, " been used 

 for years," I shall gladly yield the 

 " honor " of their invention, to which 

 I attach very little importance. 



The first device which I shall sub- 

 mit is a form of collecting bottle, 

 which has worked better for me than 

 the well-known, and many times rein- 

 vented, "Wright's Collecting Bottle." 



