41 



general collection of their own, as it was a classified catalogue, 

 and not merely a list'of preparations. 



Mr. Goodwin thought that some greater facilities might be 

 afforded to the members of the Club for seeing what slides 

 were in the cabinet. If some microscopes could be kept there 

 as well as the slides it would enable them to do this without 

 the trouble of bringing their instruments with them. 



The President said there was a drawback to this idea on 

 account of the high charges made for rental, and he really 

 thought with regard to these preparations the best thing to be 

 done was to select from the catalogue, and take the slides home 

 and study them at leisure. 



Mr. Yezey said that fresh regulations as to borrowing slides 

 would be found printed inside the catalogue, which increased 

 the facilities hitherto given, and were much more to the advan- 

 tage of the members than those previously in force. 



Mr. Watson exhibited a microscope which was similar in 

 design to the Yan Heurck microscope, but contained several 

 alterations and improvements. The stage could be rotated 

 completely either by the hands or by rack work. The milled 

 heads were fixed on one centre, and did not travel with the 

 stage. The optical centre was lOin. high from the table when 

 horizontally placed, and the spread of the feet also lOin., giving 

 great stability. There was also a centring motion which could 

 be clamped when required. 



The President thought they were to be congratulated upon 

 having so fine an instrument upon the table before them. It 

 was beautifully made, and he was satisfied it was capable of 

 doing the highest work required to be done. The complete 

 rotation of the stage was an advantage, and it should be re- 

 membered that none of the movements in the old microscope 

 had been sacrificed in obtaining it. 



Mr. Karop said he had received from Mr. Swift for exhibition 

 a new mounting for an Abbe condenser, which was made to 

 carry the usual iris diaphragm, but had a movement by which 

 it could be made eccentric and rotated in that condition. He 

 also exhibited a new pond weed grapnel which was made for 

 conveniently carrying in the pocket. 



The President thought the Abbe condenser was a very 

 prettily contrived thing and thoroughly well made, but it was 



