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XVI. — A Further Improvement in the Groves-Williams Ether 

 Freezing Microtome. By J. W. Groves, F.E.M.S. 



(Read 8th November, 1882.) 



In the present volume of the Society's Journal, page 430, Fig. 83, 

 is described and figured the method by which, at my suggestion, 

 ether was adopted as the freezing agent to a Williams microtome * 

 the chief merit being that the used ether is capable of being con- 

 veyed away into the external air without the operator being exposed 



Pig. 146. 



to its fumes, as is the case in most ether freezing microtomes, while 

 at the same time the advantages of the Williams instrument are 

 retained. 



* Cf. this Journal, i. (1881) pp. 697-9 (1 fig.). 



