108 PROCEEDINGS OF THE 



The thanks of the Club were voted to Mr. Nelson for his 

 communications. 



At the meeting of the Club held on January 28th the 

 President, Prof. A. Dendy, D.Sc, F.R.S., in the chair, the 

 minutes of the meeting held on November 26th, 1912, were 

 read and confirmed. 



Messrs. Hilary Mavor, Robert Spry, E. J. Sheppard, F.R.M.S.,. 

 A. C. Coles, M.D., D.Sc., A. M. Allison and H. W. Freeland 

 were balloted for and duly elected members of the Club. 



The list of donations to the Club was read and the thanks 

 of the members voted to the donors. 



Mr. Watson Baker, for Messrs. Watson & Sons, Ltd., ex- 

 hibited and described a new model microscope which had a 

 specially long horizontal travel, If in., to the mechanical stage, 

 both movements working on the same axis. The fine adjustment 

 is a vertical lever actuated by the now customary side-screw, 

 and permitting the worker to always know whether the body 

 is ascending or descending. It has a specially long range of coarse 

 adjustment. The most important novelty on the stand was a 

 new objective changer, made on the principle of a 3-jaw chuck ; 

 less than a quarter-turn of a collar is all that is necessary to 

 engage or release an objective, and it does not increase the tube 

 length. An auxiliary stage was also shown. This, fitted to the 

 usual stage, will give nearly four inches of horizontal travel, 

 and should be found very useful in working with large pre- 

 parations. 



Mr. A. A. C. Eliot Merlin, F.R.M.S., sent a photomicrograph 

 taken at x 320 of Coscinodiscus heliozoides, showing extended 

 " pseudopodia," from a preparation by Mr. J. D. Siddall. 



The fine radiating " pseudopodia " can be well seen when the 

 print is examined in a good light with a Verant or other suitable 

 hand magnifier. The photograph gives the impression that the 

 radiating filaments are real appendages of the organism, and 

 the general appearance of these reminds one strongly of the 

 pseudopodia of Discorbina globidaris as figured in Carpenter 

 (1901 edition), page 798. 



The photograph as a whole strikes one as more curious than 

 beautiful. It will, however, be noticed with a lens that several 

 of the radiating filaments are very fine and in exact focus. 



