449 



October 15tii, 1897.— Ordinary Meeting. 

 J. G. Waller, Esq., F.S.A., President, in the Chair. 



The minutes of the special and ordinary meetings of June 18th 

 were read and confirmed. 



The following additions to the library were announced : — 



" Science Gossip " — four parts ... From the Editor. 



" The Botanical Gazette " 



" Proceedings of the Norfolk and a c , . , 



& ,, Society. 



Norwich Naturalists' Society " J 



" Report of the Plon Biological Station" „ Director. 



"The Essex Naturalist" „ Editor. 



" Proceedings of the Geologists'^ . . ,. 



. ° ,. Association. 



Association .. . ... ... J 



"Proceedings of the Royal Society "... ,, Society. 



" The Microscope " „ Editor. 



" Proceedings of the Society of Natural^ ~ . 



Sciences of Philadelphia "... J 



" Journal of the Royal Microscopical^ 



Society" ) 



" Annals of Natural History " ... Purchased. 



" Journal of Microscopy " 



The thanks of the meeting were voted to the donors. 



Mr. Hill — for Messrs. Beck — exhibited a new centrifugal 

 apparatus for medical purposes, which was an improvement upon 

 those hitherto used. It was chiefly intended to facilitate the 

 determination of the number of red corpuscles in a given quantity 

 of blood — the tube was of the capacity of 1 cubic centimetre, and 

 this was divided into 100 parts. It was found to run very easily, 

 and to be more effective than anything of the kind in present 

 use. 



Mr. Karop said no doubt this would be found very efficient 

 for all purposes for which a centrifuge was of use, in the rapid 

 separation or deposit of particles held in suspension in liquids. 

 It had been found of use in quickly separating urinary deposits ; 

 and in this particular form it would no doubt enable any one 

 quickly to estimate the proportionate quantity of red corpuscles 

 in the blood. The price — i.e. £Q 6s. — was, however, rather 

 prohibitive to the ordinary observer. 



