INJECTION— GELATIN MASSES (wAEM). 263 



499. Ranyiee's Gelatin Mass for Impregnation (Traite, -p. 123). — 

 Concentrated solution of gelatin, 2, 3, or 4 parts ; 1 per cent, nitrate of 

 silver solution, 1 part. 



Nbuvillb {Ami. Sci. Nat., xiii, 1901, p. 36) takes a solution of 10 grms. 

 of soated gelatin in 100 c.c. of 1 per cent, solution of nitrate of silver. 



500. Fribdenthal's Hardening Mass {Centralb. Phys., xiii, 1899, 

 p. 267). — A 10 per cent, solution of gelatin, combined with a colouring 

 mass, and with 1 vol. of 4 per cent, formol, serves for injecting vessels 

 and hardening the tissues at the same time. 



