V.] CONNECTIVE TISSUE. 63 



a. The fasciculi separated from one another by 

 a small amount of connective tissue. 



6. In each fasciculus the thin branched tendon 

 cells between the bundles of fibrillae of the 

 tendon. The processes of neighbouring cells 

 not infrequently join. 



". Dissect back a piece of skin of a recently killed 

 young and fasting rat or other animal, and into 

 the subcutaneous tissue attached to this inject 

 a *5 p.c. solution of gold chloride with a Pravatz 

 syringe, until the fluid begins to exude. Let 

 this stay for a few minutes, and before the 

 swelling produced subsides snip off with a sharp 

 pair of scissors one or two pieces as thin as 

 possible, and place them in a watch-glass con- 

 taining three parts of water and one part of 

 formic acid T06 sp. gr. When the pieces are well 

 coloured, which will probably be in two or three 

 hours, shake them gently in a glass containing 

 distilled water, then mount in the manner given 

 in A. 2 c, but in acid glycerine 1 . The pre- 

 paration will improve in a day or two. Observe 



a. The leucocytes scattered about between the 

 bundle of fibres ; the fibrous bundles will be 

 more or less swollen up by the formic acid, 

 and so not offer sharp outlines. 



6. Connective-tissue corpuscles rather larger 

 than the leucocytes, and having processes 



1 Glycerine containing 1 p.c. formic acid. 



