THE ADDER, 107 
rest of the body contents. The liver is arranged in a 
semicircle to reduce the compass of the illustration ; in 
Fic, 28.—DIssection oF THE Heart, LuNc, AND Liver. 
situ it is quite straight. The small blood-vessels are 
seen stretched over the distended simple lung, just as 
they would be when the adder was taking a deep breath. 
