32 SUMMARY OF CURRKNT RESEARCHES RELATING TO 



Heidenhain's hematoxylin, after which they were washed and placed in 



iron-alum to clear, and after dehydration they were mounted in Canada 

 balsam. The most satisfactory stain was Delafield's baematoxylin. The 

 slides were passed through alcohols to 25 p.c, then into Delafield, where 

 they were left for two hours, after which they wire washed in water and 

 passed up through the alcohols and mounted. 



