440 
PROCEEDINGS OF THE SOCIETY. 
in use in Germany and in the United States. Figures of this instru- 
ment had been given in the Journal of the Society, and Mr. Crisp 
had been so much struck with the importance of having such an instru- 
ment for use at the Society's meetings, that it was decided to order one, 
and if it proved successful the Society would have been strongly advised 
to acquire one. Unfortunately, however, from various causes, the order 
had never been executed. 'The intention in Dr. Schroder’s apparatus 
was much the same as that of Mr. Nelson, though the plan of the latter 
was much less ambitious and much less expensive. He thought 
Mr. Nelson was rendering valuable services to microscopy in working 
out these improved forms of condensers for projection apparatus. The 
images he had shown upon the screen were very clear, sharp, and 
luminous, comparing most favourably with the exhibition made some 
time ago at the Society by Mr. Lewis Wright. He might also say that 
Mr. Nelson’s projection images were far superior to anything shown at 
the Crystal Palace and elsewhere, with Microscopes said to magnify 
50,000 diameters. It was interesting to note the extent of sharp field 
given by objectives of different construction ; the projection images 
enabled the observer to select different qualities of objectives with great 
facility. He hoped the Society’s funds would soon enable them to 
acquire such an instrument for practical demonstrations in illustration 
of papers at the meetings — a point which Mr. Crisp and he had long 
regarded as worthy of the Society’s most careful consideration. The 
possession of a projection lantern for exhibiting photographs, &c., on 
the screen was, of course, involved in the equipment required by the 
Society ; but the projection Microscope itself, with which Microscope 
objectives could be employed effectively, was the essential thing 
required. 
The President announced that the next meeting would take place on 
Wednesday, 17th June. 
The following Instruments, Objects, &c., were exhibited:— 
Mr. C. L. Curties Baker’s Improved Student’s Microscope, and 
Zeiss’s Mechanical Stage (Mayall’s form). 
Mr. E. M. Nelson : — (1) Projection Microscope. (2) New Appara- 
tus for producing Monochromatic Illumination for the Microscope. 
Mr. T. B. Rosseter : — Slides (3) of Cysticercus in illustration of his 
note. * 
Messrs. W. Watson & Sons: — Dr. Van Heurck’s Microscope for 
Photomicrography and high-power work. 
New Fellows: — The following were elected Ordinary Fellows: — 
Mr. Samuel Hartshorne Ridge, B.A., F.R.G.S., and Sir Walter Joseph 
Sendall, K.C.M.G., Governor of Barbados. 
