LYMPH FLOW 



37 



manner to the body is influenced by temperature. In view of 

 the observations made in the preceding pages, we have reason 

 to believe that in the living frog, in addition to, though in 

 conjunction with this osmotic transfer, water is also driven 

 through the skin into the subcutaneous lymph sinuses by a 

 force acting independently of osmotic pressure, so that 

 the water supply to the body is not obtained exclusively 



Gam 



< 



Loss 



Bod 



14 



Hoi 



/ t 



v S 6 



II It. 



from that driven through the skin by osmosis. Furthermore, 

 during the transport of water through the skin by either 

 method, the skin itself may absorb or it may lose water. 

 Should we therefore attempt to obtain the temperature co- 

 efficient of absorption of the skin, either in a skin glove or in 

 the living animal, we should expect this coefficient to vary 

 in relation to the capacity of any particular skin to transfer 

 water through itself independently of the osmotic transfer, 

 as well as to absorb or to lose water. A coefficient of absorp- 

 tion of the living skin should therefore be the resultant of 

 the action and interaction of a number of factors which in- 

 clude osmotic pressure, a force which drives water through 

 the skin independently of osmotic pressure, and a gain or 

 loss of water by the tissue colloids. 



