116 THE SUMMERING OF HUNTERS. 



which these gases will escape, the skin and bowels 

 assisting the lungs in their task, and so forth. 

 There is just one other means by which the blood is 

 drained of impurities in this way. The blood is an 

 extremely complex fluid, and holds different forms of 

 nourishment for different tissues. At the risk of 

 appearing ridiculous we will say that it holds 

 potatoes for the bone tissue ; cabbage for the muscle 

 tissue, cauliflower for the nerve tissue, and so forth ; 

 £0 that each tissue in taking from the blood what it 

 requires to nourish itself acts as a drain, that is to 

 say, it takes from the blood a substance which it 

 requires, but which the other tissues do not require. 

 If then any tissue fails to take from the blood that 

 which the blood is holding for its special benefit then 

 that tissue fails to act as a drain, and the blood is 

 holding a substance which actually is an im- 

 purity—matter in the wrong place— and which, not 

 being wanted, the blood stream has to rid itself of 

 through one of the other drains we have mentioned. 

 We will let the reader peep behind the curtain just 

 a moment by hinting that the muscles in a hunter, 

 resting in a box, are not requiring, and therefore 

 not taking their *' cabbage," and so the " cabbage " 

 is an impurity in the blood which the blood has to 

 rid itself of. 



Resuming our line of thought we see what a com- 

 plex mechanism our servant tissues really are, but 

 which we can briefly and widely state to be made 

 up of three parts, viz. : — 



