378 PROCEEDINGS OF THE SOCIETY. 



MEETING 



Held ox the 20th of May, 1903, at 20 Hanover Square, W.. 

 Dr. Henry Woodward, F.R.S., President, in the Chair. 



The Minutes of the Meeting of the 15th of April, 1903, were read' 

 and confirmed, and were signed by the President. 



Mr J.J. Vezey said that reference had been made to the kindness 

 of Mr. Fletcher in conducting a party of the Fellows of the Society 

 through the Mineral Department of the Natural History Museum, on 

 April 18th, and as one of those who attended on that occasion, he should 

 like to publicly express his indebtedness and that of the Society for the 

 attention shown to them during the two hours which were occupied in 

 taking them round the gallery and pointing out and explaining the 

 specimens exhibited. He therefore moved : " That the warmest thanks- 

 of the Society be given to Mr. Fletcher for his kindness and courtesy to- 

 the Fellows of the Royal Microscopical Society on the occasion of their 

 visit to the Mineral Department of the Natural History Museum." 

 ; * The motion having been seconded by Mr. K. J. Marks, was put to* 

 the Meeting by the President and carried unanimously. 



The List of Donations to the Society, exclusive of exchanges and 

 reprints, received since the last Meeting, was read, and the thanks of 

 the Society given to the donors. 



From 

 Eyre J W. H., The Elements of Bacteriological Technique.) T , . , ; 

 <8vo, London. 100:2) / ine AuVwr - 



^ 5?lV mp(>! " U } M /, CrOSCOpe )Mt. E.M.Nelson.. 



An Old Microscope by Carey j 



Special attention was called to the work on Bacteriological Technique 

 by Dr. Eyre, one of the assistant editors of the Society's Journal ; also 

 to the two old Microscopes, one of whicti was an instrument by Carey, 

 and the other an extremely old specimen of a compound Microscope 

 with the mirror attached to the limb, of which a description by Mr. 

 E. M. Nelson was read to the Meeting. 



Mr. C. L. Curties exhibited and described a new Monochromatic 

 Li°;ht Apparatus, which was a modification of that suggested by Dr. Spitta 

 and exhibited by him at the Meeting of the Society in November 1902. 



It consisted of an optical bench upon which were mounted an electric 

 lamp of the Nernst pattern, an aplanatic bull's eye condenser with 

 centring adjustments, an adjustable slit, an achromatic collimating lens, 

 a prism upon which was mounted one of Thorp's replica gratings, and 



