REAGENTS AND STAINS. 209 



FIXATIVES. 



Collodion and clove oil mixture. Mix one part of 

 collodion with three parts clove-oil. 



Egg-ulbumen and glycerine. Filter the whites of 

 several eggs and add to the filtrate an equal volume of 

 glycerine. To the mixture add a few drops of carbolic 

 acid or a small piece of thymol to prevent putrefaction. 



PARAFFIN SOLVENTS. 



Xylol, turpentine, chloroform, and benzole are com- 

 monly used to remove paraffin from sections. A gooci 

 plan is to immerse the slide containing the section for a 

 few moments in xylol, and then transfer to turpen- 

 tine for ten minutes. 



STAINING SOLUTIONS. 



The following staining preparations are those most 

 frequently used, and will be found adequate to the 

 work required in this text. Should others be needed, 

 the formulae can be obtained from more advanced 

 works. 



Hanstein's rosanilin violet 



Methyl violet I gram. 



Fuchsin I gram. 



Distilled water 100 cc. 



14 



