51 



SCHEMA FOR THE STAINING OF SECTIONS. 



Celloidin Sections Paraffin Sections 



fasten to slide not fastened to slide 



I 



by 



(a) absorbing clarifier 



I 



and 



} 



(b) flooding with a few 

 drops of ether-alcohol 



xvlene*- 



95 % alcohol 



water 



J 



Aqueous stain 

 (e. g., hematoxylin) 



water 



Aqueous 

 Counter-stain 

 (e. g.,eosinor 

 picro-fuchsin) 



1 



water, or 67% alcohol 



Alcoholic 



Counter-stain 



(e.g., orange G.) 



alcohol 



Dehydrate 

 (95%-99% alcohol) 



1 

 Clear 



1 

 Mount in balsam 



fasten to slide 



by 



albumen fixative, 



spreading with 



water and drying 



Alcoholic stain 

 (e. g., Hcl. carmine) 



alcohol 



