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TRANSACTIONS OF THE CANADIAN INSTITUTE. @ [VoL VI. 
3. 17.—Neuroblast from 15mm. pig. Bichloride-bichromate, eosin and toluidin blue. 
. 18.—Neuroblast from 15mm. pig. Bichloride-bichromate, eosin and toluidin blue. 
G. 19.—Neuroblast from 15mm. pig. Bichloride-bichromate, long stain in eosin, short 
stain in toluidin blue. The oxyphile nuclear substance appears redder than 
it would be if the time of staining had not been altered. In this respect it 
resembles the nuclear substance of Zzmax. (See text.) 
20.—Neuroblast of 15mm. pig. Bichloride-bichromate, acid alcohol 5% hours, 
haematoxylin. 
21.—Neuroblast from 32mm. pig. Alcohol, eosin and toluidin blue. 
