424 



displaying his preparations of blood parasites. The objectives 

 employed were the new T V-in. oil immersion of N.A. 1*30, just 

 issued by that firm. They were made on a new formula, and 

 had a very flat field. 



At the meeting of the Club held on December 4th, 1908, 

 Professor E. A. Minchin, M.A., President, in the Chair, the 

 minutes of the meeting held on November 6th were read and 

 confirmed. 



Messrs. T. Brooks, T. S. Wilkins, G. Howard, and F. E. Sharp 

 were balloted for and duly elected members of the Club. 



Several donations, including a series of back numbers of the 

 Journal presented by Mr. W. H. Venables, were announced, and 

 the thanks of the Club voted to the donors. 



Mr. F. W. Watson Baker, F.RM.S. (for Messrs. Watson), 

 described a form of exhibition, or museum, microscope designed 

 by Mr. Waterhouse, of South Kensington. The usual 3 by 1 

 slips were carried on a drum rotated by a large milled head. A 

 spring catch indicated the centre of each slip. Focusing was 

 provided for by a rotating eyepiece, the whole being enclosed in a 

 glass case, the only projections being the eyepiece and the milled 

 head. It was found necessary in cases like this to build the 

 instrument so that it was not possible to remove any part from 

 the outside. This, he thought, had been successfully accom- 

 plished. Two instruments of this design had been employed for 

 the exhibition of specimens by Mr. Rousselet at the Franco- 

 British Exhibition. 



A new growing-cell for use with the highest powers, designed 

 by Mr. A. A. C. Eliot Merlin, F.RM.S., was described by the 

 Hon. Secretary, from a specimen exhibited by Messrs. Baker. 

 A specimen of Dallinger's growing-cell was lent by Messrs. Beck 

 for comparison. This consists of a glass plate on a vulcanite 

 platform. In the centre the object is placed, surrounded by a 

 vulcanite ring, and kept moist by blotting-paper, which dips 

 into a glass tube holding water attached to the base-plate. A 

 rubber cone fits over the object-glass, and is placed in contact 



