1893 ] NEW-YORK MICROSCOPICAL SOCIETY. 43 



vation of the temperature of the slide to a degree near the low 

 melting-point of paraffin. 



The balsam-paraffin is well suited for making deep cells by 

 means of the Chapman mould, either in the simple form or col- 

 ored, ie., the black or the white zinc paraffin. Two precautions 

 need attention : 



1. The mould should be kept well cleaned, and its inner surface 

 rubbed over with a very slight film of vaselin previous to use. 

 This prevents the adherence of the paraffin cell, which comes out 

 readily in perfect form. 



2. On account of the low melting point of paraffin, it is difficult, 

 in the ordinary way, to cause the moulded cell to adhere perfectly 

 to the warmed slide, without partial fusion and injury. A paraffin 

 film should be first spun upon the slide, carefully warmed just to 

 the point of fusion, the moulded cell applied, and the whole quickly 

 cooled. 



INAUGURAL ADDRESS 



BY THE PRESIDENT, MR. CHARLES S. SHULTZ. 

 {Delivered January 20th, 1893.) 



It is with much misgiving that I now assume the duties and 

 the honor of the Presidency of this Society. Do not expect me 

 to reach the high scientific standard of the gentleman whose suc- 

 cessor I have become, nor the standard of those who have pre- 

 ceded him in the office. I desire, however, that faithfulness 

 and energy may make partial amends for possible lack of talent. 



May I then, at the outset, trouble you with a few suggestions 

 which, if heeded, may be of some service to the Society ? 



Let us be punctual, so that the meetings may be opened at the 

 appointed hour. Let. exertion be made to attend all meetings, 

 whether papers are announced or not. Meetings with unan- 

 nounced p.ipers or addresses have usually afforded the attendants 

 much pleasure and instruction. Also, a numerous representation 

 infuses a spirit of emulation on the part of those in attendance, 

 and greater results are consequently obtained. Encourage the 



