248 PROCEEDINGS OF THE SOCIETY. 



AN lORDINARY MEETING 



OF THE Society was Held at 2o Hanover Square, London, 

 ON Wednesday, March 15th, 1916, Mr. E. Heron-Allen, 

 F.L.S. F.G.S., ETC., President, in the Chair. 



The Minutes of the last Meetini;, having been ah-eady circulated, 

 were approved, and duly signed by the President. 



The following three gentlemen were balloted for as Ordinary 

 Fellows of the Society, and were declared by the President to be duly 

 elected : — Charles Hanslope Bocock, Frederick James Hazledine, John 

 Richardson. 



The Hon. Secretary read the Nomination papers of the following 

 Candidates : — Frederick Ashworth, Professor Benjamin Moore, F.R.S., 

 Sydney Pitt, Francis E. Robotham, Br. Charles Singer. 



Donation — 



From 

 Mount for Artificial Daylight Disc .. .. Mr. C. Lees Curties, 



Dr. Eyre exhibited two Warm-Stages (Electric) for the Micro- 

 scope. 



1. Lorrain Smith's Warm-Stage consisted of a flat glass chamber, 

 filled with liquid paraffin and mounted in a wooden frame. Inside the 

 chamber were two manganin- wire coils, connected to screw terminals 

 on the framework. By interposing a resistance and an ameter, one could 

 regulate the current applied to the heating coils, and thereby adjust the 

 temperature of the liquid paraffin to practically any temperature from 

 25° C. up to 100° C. 



2. The Electric Warm-Stage of the Chicago Surgical and Electrical 

 Company, a very simple and practical piece of apparatus, found very 

 useful by those who were engaged in hunting for the amoebse of 

 dysentery. It consisted of a rectangular metal frame, which contained 

 resistance (heating) wires within its walls, and was provided with a 

 make-and- break contact regulated by a small screw. The apparatus 

 carried a clinical thermometer, and the necessary extra resistance was 

 provided by a 16-candle power lamp. The slide, with the material to be 

 examined already mounted, was dropped into the cell to form the 

 bottom, and the stage was placed on the stage of the Microscope ; the 

 top of the cell was covered in with a mica plate, in which was a circular 

 hole to admit the objective. Once the apparatus had been regulated to 



