EFFECTS OF THIRST, ETC., ON EMYS SERRATA. 



49 



TV. — Talks showing the Actual Losses of Blood and its Constituents hy Emys terrapin^ during 



different 'periods of Starvation and Thirst. 



■WATER AND SOLID CONSTITUENTS OP BLOOD AND SERUM. 





Period of starva- 

 tion and thirst. 



Amount of blood 

 lost. 



Water of blood. 



Solid constitu- 

 ents of blood. 



Solid constitu- 

 ents of serum. 



2d female terrapin 

 3d " 



40 days 

 57 " 



Grains. 

 600 

 800 



Grains. 

 525.05 

 696.32 



Grains. 

 74.95 

 103.68 



Grains. 

 11.09 

 20.19 



CONSTITUENTS OP BLOOD. 





Period of 

 starvation and 

 thirst. 



Amount of 

 Vfater lost. 



Blood- 

 corpuscles. 



Albumen and 

 extractive 

 matters. 



Fibrin. 



Fixed saline 

 constituents. 







Grains. 



Grains. 



Grains. 



Grains. 



Grains. 



2d female terrapin 

 3d " 



40 days 



525.05 



56.39 



10.07 



2.04 



6.45 



57 " 



696.32 



72.42 



17.84 



3.78 



9.63 



MOIST BLOOD-CORPUSCLES AND LIQUOR SANGUINIS. 





Period of 

 starvation 

 and thirst. 



MOIST BLOOD-COnrUSCLES. 



LIQUOR SANGUINIS. 



Moist blood- 

 corpuscles. 



Water of 

 moist blood- 

 corpuscles. 



Solid con- 

 stituents of 

 moist blood- 

 corpuscles. 



Liquor san- 

 guinis. 



Water of 

 liquor san- 

 guinis. 



Solid con- 

 stituents of 

 liquor san- 

 guinis. 



2d female terrapin 

 3d " 



40 days 

 57 " 



Grains. 

 247.28 

 318.84 



Grains. 

 185.46 

 239.13 



Grains. 

 61.82 

 79.71 



Grains. 

 352.72 

 481.16 



Grains. 

 339.59 

 457.19 



Grains. 

 13.13 

 23.97 



These tables show that, during starvation, the water wasted more rapidly than 

 any of the other constituents of the blood, which became more and more con- 

 centrated as starvation advanced, and hence the apparent increase in its solid 

 constituents in 1000 parts. The blood-corpuscles wasted as well as the albumen, 

 fibrin, and fixed saline constituents. This fact proves that the blood-corpuscles 

 have important offices to fulfil, in supplying the tissues and organs with nutriment, 

 and replacing the organic and inorganic constituents thrown off and consumed. 



Series III. — Effects of Starvation and Thirst upon the Fluids and Solids of 

 Yellow-bellied Terrapins [Emys serrata) . 



26. Blood of a Female Emys serrata, which had been kept without food or drink 

 for three and a half days. May 2Gth. 



Weight of terrapin. May 25th ..... 33.417 grains. 



" " twelve hours afterwards . . . 33.258 " 



Loss of weight in twelve hours . . . . . 159 " 



In twelve hours it had lost r.'\^th of its whole weight, or ^-^^j^ili per hour. 



