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X. — A Universal Microtome. 

 By SiK Horace Darwin, F.E.S., and Mr. W. G. Collins. 



[Bead June 16, 1920.) 

 Four Text-figures. 



The Cambridge Rocking Microtome was designed and first made 

 in 1885 ; it has been much used and undoubtedly is a successful 

 instrument. The Universal Microtome has, we believe, all the 

 good features of the Eocking Microtome, and at the same time lias 



Fig. 1. 



the additional advantage that flat sections are cut. The instru- 

 ment is well adapted for cutting objects embedded in paraffin or 

 celloidin, or frozen preparations ; it is also convenient for the 

 ribbon or serial method in paraffin, and for Apathy's " series on 

 the knife" method in celloidin. This microtome differs in its 



