105 



PROCEEDINGS OF THE SOCIETY. 



AX ORDmARY MEETING 



OF THE Society was held at No. 20 Hanover Square, W., ox 

 Wednesday, December 19th, 1917, Mr. E. Heron- Allen, 

 President, in the Chair. 



The Minutes of the last jMeeting, having been circulated, were taken 

 as read, confirmed, and signed as correct bv the President. 



Mr. Fendick was elected a Fellow, and the names of four gentlemen 

 were proposed for Fellowship, to be balloted for at the next Meeting. 



Donation. — The President announced the receipt of a model of the 

 diatom Sun'reUa hifrons, made by the late Mr. John D. Hardy in 1888. 

 It was very interesting as an early specimen, and had been presented 

 by Mr. Rousselet, to whom a cordial vote of thanks was unanimously 

 accorded. 



Mr. Martin Duncan exhibited two photomicrographs of bacteria, 

 which he took in 1896, by dark -ground illumination. Makers always 

 insisted upon the necessity for using high-power immersion dark-ground 

 condensers ; but as these were now unobtainable, it would probably 

 interest many, and particularly medical men, to realize that the ordinary 

 achromatic condenser could be used if the correct stop was cut oat and 

 adjusted. Dr. Dallinger, in 1806, suggested the feasibility of these 

 methods, and the two photomicrographs now shown were obtained in that 

 way. 



Mr. Martin Duncan was thanked for his exhibit. 



A paper by Prof. G. S. West, M.A. D.Sc, on "A New Species of 

 Gom/rosira,'" was read by Mr. Scourfield. Tlie new species was described 

 as a lime-incrusted alga forming somewhat nodular masses, 4-9 mm. 

 thick, of a vivid green colour, which h?.d been found by Mr. Scourfield 

 and Mr. Harris at Weston Mouth, Devon, growing in such a position 



