EFFECTS OF TniRST, ETC., ON EMYS TERRAPIN. 



45 



400 errains of blood contained — 



Moist blood-corpuscles 200.00 



Liquor sanguinis 



(Water . 



"(Solid coustilueuts 



200.00 ■ 



(Solid constituents 



150.00 

 50.00 



ltO.23 

 29.71 



If this terrapin had originally an equal amount of blood of the same chemical 

 constitution with that of the terrapin in the normal state, used in the preceding 

 analysis, then it had lost, during forty days, 600 grains of blood, which had the 

 following composition : — 



60,0 grains of blood, consumed during starvation, contained- 



Water ..... 

 Blood-corpuscles (dried organic constituents) 

 Albumen, fatty and extractive matter 

 Fibrin ..... 

 Fixed saline constituents 

 Solid constituents in 600 grains of blood 

 " " in serum of 600 grains of blood 



600 grains of blood contained- 

 Moist blood-corpuscles 241.28 



Liquor sanguinis 



(Water . 



(Solid constituents 



352.12 • 



(Solid constituents 



525.05 

 56.39 

 10.01 

 2.04 

 6.45 

 14.95 

 11.09 



185.46 

 61.82 



339.59 

 13.13 



25. Blood of a female Salt-water Terrapin {Emys ierminn), which had been kept 

 without food and drink for fifty-seven days. 



Weight of terrapin, June 21 



" " August 16 . 



Loss of weiglit during fifty-six days 



12.280 grains. 

 9.255 " 

 3.025 " 



In fifty-six days this Chelonian had lost one-fourth of its original weight. The 

 loss each hour during its starvation, was g^Vs" original weight of its body. 



This terrapin had just deposited its eggs when captured, and this will account 

 for its living so great a length of time without food or drink. 



The female terrapins that were captured before their eggs were deposited, 

 refused to lay, in confinement, became feeble, and died in the course of two or 

 three weeks. This was, without doubt, the result of the anxiety and irritation, 

 occasioned and kept up by the eggs within them. 



The blood-corpuscles, under the microscope, presented no unusual appearance, 

 showing that a free interchange between the liquor sanguinis and their contents 

 had been carried on continuously. 



Amount of blood obtained 

 Probable amount of blood consumed 

 Solid constituents in 1000 parts of blood 

 " " " scrum 



" in scrum of 1000 parts of blood 



Water in 1000 parts of blood 

 " " serum 



200 grains. 

 800 " 

 255.22 

 111.96 

 92.82 

 144.18 

 888.04 



