NOEMAL OE INDIFFEEENT FLUIDS. 



These may be described as fluids which will not injuriously 

 affect tissues. They consist of 



(i.) BLOOD SEBUM. 



Obtained by allowing blood to coagulate, and pouring off 

 the serum after a day. 



(ii.) AQUEOUS HUMOUR. 



Best obtained by puncturing the cornea of a freshly excised 

 ox's eye-ball. 



(iii.) NORMAL SALINE SOLUTION. (0-75 p. c.) 



Colourless Eock Salt or recrystallized Sodium Chloride, 

 7 1 grms. ; Distilled Water, 1000 cc. 



