EFFECTS OF THIRST, ETC., ON EMYS SERRATA. 



53 



Probable amount of blood consumed during twenty-four days of starvation and 

 thirst, 1500 grains. 



Solid constituents in 1500 grains of blood 



" " serum of 1500 grains of blood 



1500 grains of blood contained — 



146.04 

 39.98 



Water ..... 

 Blood-corpuscles (dried organic constituents) 

 Albumeu, fatty and extractive matter 

 Fibrin ..... 

 Fixed saline constituents 



1500 grains of blood contained — 



(Water . 



(Solid constituents 



(Water . 



(Solid constituents 



Moist blood-corpuscles 419.28 

 Liquor sanguinis 1080.72 



1353.96 



100.21 



38.08 



1.24 



6.52 



314.46 



104.82 



1039.50 



41.22 



29. Blood of Female Yellow-bellied Terrapin (Emys serrata), wbich bad been 

 kept without food or drink for twenty-six days. 



Weight, May 26 34.155 grains. 



June 14 ..... . 28.615 " 



Loss of weight during twenty days .... 5.480 " 



In twenty-six days this terrapin had lost from one-fourth to one-fifth of its whole 

 weight. Loss of w T eight each hour, ll T Vo grains, = o qVt^ the original weight of 

 its body. 



This Chelonian was in a feeble state, and in all probability would not have lived 

 many days. 



When its tissues and organs were examined it was found that the yellow fat, 

 which is so abundant in these animals, had disappeared, having been consumed for 

 the maintenance of the animal function, and in the supply of the wastes of the 

 tissues and organs. The destruction of the fat was observed to be one of the con- 

 stant effects of starvation. 



The amount of blood obtained was not more than one-half as much as that 

 obtained from a much smaller terrapin, which was killed only a few days after its 

 removal from the water. 



Specific gravity of its blood ...... 1043. 



Solid constituents in 1000 parts of blood .... 198.66 



" " " serum .... 95.48 



" " serum of 1000 parts of blood . . . 84.59 



Water in 1000 parts of blood ...... 801.34 



" " serum ...... 904.52 



1000 parts of blood contained — 



Water ..... 

 Blood-corpuscles (dried organic constituents) 

 Albumeu, fatty and extractive matter 

 Fibrin ..... 

 Fixed saline constituents 



801.34 

 102.9T 



80.09 

 4.15 



11.45 



