— 152— 



Embedded in 



I 



A' 



V 



Celloidin. 



i 



Paraffin. 



V 



Distilled water. 



v 



Fix to slide or cover witli 



albumen fixative or dextrin solution. 



I 

 V 



"Warm until paraffin melts. 



4 



Dissolve paraffin in toluol or xylol. 



V 



AVash in absolute alcohol. 



AVasli in 9r>% alcohol. 



V 

 Wash in distilled water. 



I 

 V 



Boehmer's hfematoxylin solution for 5 to 30 minutes. 



V 

 0.5% potash alum solution 5 minutes. This develops stain, 



and acts as a mortant. 



i 



Wash in distilled water. 



i 



Dehydrate in alcohol. 



V 



Clear in oil of bergamot. 



V 



Celloidin sections. 



I 

 V 



Mount in balsam. 



Sections fixed to slide or cover. 



Pass through xylol, and mount in balsam. 



Ehrlich's Haematoxylin Solution. 



This solution can be kept for a long time, it seems to 

 improve with age. 



