62 



PRACTICAL HISTOLOGY. 



sections are to be stained in a watery solution of a dye. The 

 sections are then coloured in situ on the slide. If the sections are 

 to be mounted in balsam, they must go through the same process in 

 the reverse order, viz., increasing strengths of alcohol a clarifying 

 agent, clove-oil, or xylol and finally they are mounted in balsam. 



Scheme for the Further Treatment of Paraffin Sections. 

 Paraffin section. 



Fixation on slide. 



Toluol or turpentine. 



Absolute alcohol. 



Staining, if not previously stained. 

 Wash to remove surplus stain. 



Absolute alcohol. 



Clove oil. 



Toluol or turpentine. 



Balsam. 



