84 Liver. 



tions are best cut with the freezing microtome and may 

 be stained in a great many different ways. 



In a section containing a portion of Peyer's glands, 

 the treble staining process, page 39, may be used, and 

 the result will be very good as the Peyer's glands take 

 on the green alone, without combining another colour 

 with it, as all the other elements in this specimen do, 

 so that they are brought out as brilliant light green 

 bodies. 



ILIO-CCECAL VALVE. 



A section should be made through the ilio-coecal 

 valve with a little of the intestine on either side of it, 

 and this should be trebly stained by the process men- 

 tioned at page 39. Some sections should, however, 

 always be stained with logwood to compare with the 

 others, as although double and treble staining differ- 

 entiate the various tissues, logwood brings out the 

 structural element better than any other stain. 



SOLITARY GLANDS. 



Sections should be made through a piece of large 

 intestine containing a solitary gland and this will be 

 weU brought out by the treble staining process. 



LIYEE. 



The liver may be prepared for examination in three 

 ways : 



1. By the ordinary chromic acid mixture, page 11. 



2. By dilute spirit, page 13. 



3. By Muller's fluid, page 12. 



