64 THE AMERICAN MONTHLY [Feb. 



having a diiferent solvent. Shellac (in alcohol) serves this 

 purpose best. This would finish the slide. If, however, 

 it is desired to make the slide still more permanent, as 

 an object of beauty, the following described process will 

 well repay the additional labor. After the shellac has 

 well dried, put on a ring of zinc-white cement entirely 

 enclosing the shellac, and, within a few minutes, before 

 the zinc has fully set, ring it with any color of King's 

 lacquer (I have tried no others) in any manner taste 

 might direct. The lacquer unites with the zinc, and 

 gives it the appearance of porcelain. Around the cover- 

 glass, and around the cell on the slide, draw a ring of 

 bronze paint. This will hide any defects in ringing and 

 give the slide a very handsome appearance, with, after 

 some practice, really little extra work. 



EDITORIAL. 



A Monument Proposed to Robert B. Tolles. — If we 



mistake not, an elFort was made a few years ago by Mi- 

 croscopists to collect some money for a monument but without 

 much success. Much more recently a movement was started 

 by Mr. Bohne in New Orleans but was shortly transferred to 

 Boston as being a more suitable point from which to communi- 

 cate with those interested. At the September meeting of the 

 New England Association of Opticians, a committee which had 

 been previously appointed, reported in favor of the project. After 

 a discussion, the recommendations of the committee were 

 adopted and in accordance therewith a permanent committee 

 consisting of Messrs. A. G. Barber, A. G. McKenzie, B. V. Howe 

 E. G. Worthley and W. J. Donovan was appointed to corres- 

 pond with Opticians, Medical Practitioners, Microscopical Soci- 

 ties and Optical Journals in the United States in the hope of 

 receiving subscriptions. A small number of subscriptions were 

 taken at the same meeting. 



As expressing the sense of the association it was voted 

 "That it is the sense of the New England Association of Opticians, 



