O O J 



lactorite for the purpose of milk separation 5 he believed it was 

 the first instrument for the purpose of separating bodies of different 

 densities. 



The President said that thanks were due to Mr. Scourfield for 

 drawing attention to this instrument. The centrifuge is very 

 useful in many different kinds of work, and it often enormously 

 shortens the time taken. Some time ago he had occasion to make 

 a number of preparations from human faeces, from which it was 

 desired to examine certain small amoebae therein contained. A 

 small quantity, together with the first liquid, was placed in a tube 

 and centrifuged, the liquid decanted off, the next liquid added, 

 centrifuged, decanted off, and so on, down to xylol. Finally, the 

 material was pipetted out, and mounted. It was a very useful 

 and very rapid method of doing exactly the same as that with a 

 piece of tissue, which could be held with forceps. Tnjpanosoma 

 (jambiense was first discovered in the cerebrospinal fluid b}' 

 Castellani by the use of the centrifuge, and it was a discovery of 

 immense importance. The centrifuge was a most useful adjunct 

 to any laboratory for all kinds of work. It was most astonishing 

 that even the most delicate forms were not injured by centrifug- 

 ing. One could, of course, drive slower and for a longer time, and 

 so get less chance of damaging these delicate organisms. 



The thanks of ithe Club were unanimously voted to Mr. Scourfield 

 for his paper. The Hon. Secretary said they had another paper 

 on the agenda, by Mr. Soar, but in view of the absence of the 

 author and the lateness of the hour this paper would be held 

 over until their next meeting. 



Among a number of preparations exhibited at the meeting may 

 be mentioned : Sjnrogyra orihosp'ira^ Nag., by Mr. James Burton ; 

 organisms taken by tow-netting in the Faroe Channel with some 

 especially fiue specimens of Glohiyerina halloides, pelagic type^ 

 showing the armament of spines, by Mr. A. Earland, F.R.M.S. ; 

 pupal condition of Corethra plumicoi^nis, by Mr. S. C. Akehurst. 



At the meeting of the Club held on May 23rd, Mr. E. J. Spitta, 

 L.R.C.P., M.K.C.S., Vice-President, in the Chair, the minutes of 

 the meeting held on April 25th were read and confirmed. 



Messrs. Charles A. Bunnin and Cyril E. Pells were balloted for 

 and duly elected members of the Club, 



