332 



no loss of time whatever, even when the pinion was pressed 

 lightly into the rack. 



The President asked if Mr. Nelson thought the fine adjustment 

 to the substage was of any great value. 



Mr. Nelson thought it was certainly so in cases when oil- 

 immersion condensers were being used. 



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

 remarks. 



Mr. J. G. Waller read a paper on an undescribed species of 

 British sponge, Raphiodesma affinis, illustrating the subject by 

 drawings upon the board. 



Mr. Karop asked if Mr. Waller could give them any idea as to 

 the practical use of the anchorate spicules. 



Mr. Waller said that Dr. Bowerbank called them " retentive," 

 but was abused for so doing, so he thought they could not enter 

 into that subject. 



A vote of thanks was then passed to Mr. Waller for his- 

 paper. 



Announcements of meetings for the ensuing month were then 

 made, and the proceedings closed with the usual conversazione. 



November 17th, 1899. — Ordinary Meeting. 

 J. Tatham, Esq., M.A., M.D., F.R.M.S., President, in the Chair. 



The minutes of the ordinary meeting of October 20th, 1899,, 

 were read and confirmed. 



The following donations were announced : — 

 '• The Journal of Applied Microscopy " From the Publishers. 



''Proceedings of the Canadian Insti-'j t- ,., , 



,, ^ „ Institute, 



tute" J " 



"Proceedings of the U.S. National^ ,, U.S. Govern- 



Museum" — Vol.21 ... J ment Department. 



The thanks of the Club were voted to the donors. 



Special attention was called by the Secretary to the new 

 volume of reports of the United States Museum, the papers in 

 which weie in many cases veiy valuable. 



A series of photographs of the plates in Ehrenberg's " Kadiolaria 

 from Barbados," a supplement to the " Mikrogeologie," were 



