22 Transactions of the Societt/. 



" Euparal " is added. This latter condition is easily made apparent 

 by any adjustment that may be made npon the cover-glass for the 

 purpose of centring same ; the section will be found to remain 

 perfectly adherent however much movement is applied. Indeed for 

 the purpose of testing the amount of adherence of the section to 

 tlie slip, I have frequently moved the cover completely off and 

 reapplied same without the least undesirable movement or dis- 

 arrangement of the section. 



In conclusion, I feel sure that this method of handling sections 

 that have been cut from celloidin-embedded material will prove of 

 great value to all microtomists. I have placed under the microscope 

 for examination a section of the developing teeth of a foetal kitten 

 doubly stained and mounted in the manner described ; there are 

 otliers on the table whicli can be inspected by hand. 



