APPENDIX. 



LIST OF EEAGENTS. 



I, EEAGENTS FOE KILLING, HAEDENING, AND 

 PEESEEVING. 



OSXIC ACID, 2 per cent, solution. 



Fre;pa/ration. — Dissolve 1 gnu. osmio acid crystals in 50 c.c. 



distnied water. Keep in the dark. 

 TJge. — For .killing roioroscopio animals and for staining fats. 



Before using, it is to be diluted with 1 to 3 times its bulk 



of water. 



FICBIC ACID, saturated solution. 



Preparation, — Saturate water with picric acid by shaking it 

 up with the crystals. Allow to stand : decant before use. 

 Use. — Hardening reagent. 



FICBIC ACID, Kleinenberg's solution. 



Preparation. — To 250 c.c. satmrated solution of picric acid add 

 c.c. strong sulphuric acid : filter : make up to 1 litre 

 with water. 

 Use. — Hardening and decalcifying reagent. 



