4(i 



EFFECTS OF THIRST, ETC., ON EMYS TERRAPIN. 



1000 parts of blood contained — 



Water ..... 

 Elood corpuscles (dried organic constituents) 

 Albumen, fatty and extractive matter 

 Fibrin ..... 

 Fixed saline constituents 



1000 parts of blood contained — 



Moist blood-corpuscles 642.20 -5'^^^*^'' ' 



(Solid constituents 



Liquor sanguinis 



35t.8o 



(Water 



(Solid constituents 

 The number of blood-corpuscles appears to be ver 



'744.18 

 156.96 

 90.8t 

 L85 

 5.52 



48L65 

 160.55 

 263.13 

 94.61 



vy great, but it is so only in 

 appearance and not in reality ; for, the amount of blood in the Clielonian is very 



small, and the blood-corpuscles correspondingly few in number. The whole amount 

 of blood, obtained with great care, did not exceed 200 grains. 

 200 grains contained — 



Water ......... 148.96 



Blood-corpuscles (dried organic constituents) .... 31.39 



Albumen and extractive matter ...... 18.11 



Fibrin ......... .31 



Fixed saline constituents ...... 1.11 



Solid constituents in 200 grains of blood .... 51.04 



" " in serum of 200 grains of blood . . . 18.56 



200 grains of blood contained — 



Moist blood-corpuscles 128.44 -{^^ ' 



( Solid constituents 



Liquor sanguinis 



11.56 



(Water 



96.33 

 32.11 

 52.63 

 18.93 



1 Solid constituents 



If the starved terrapin, and the one in a normal condition possessed originally 

 equal quantities of blood, having the same chemical constitution, then the starved 

 terrapin must have consumed, during fifty-seven days, 800 grains of blood, having 

 the following constitution : — 



Solid constituents in 800 grains of blood 

 " " in serum of 800 grains of blood 



800 grains of blood contained — 



Water ......... 696.32 



103.68 grains. 

 20.19 " 



Blood-corpuscles (dried organic constituents) 

 Albumen, fatty and extractive matter 

 Fibrin ..... 

 Fixed saline constituents 



800 grains of blood contained- 



Moist blood-corpuscles 318.84 -] 



Liquor sanguinis 481.16 



f Water . 



(Solid constituents 

 (Water . 



(-Solid constituents 



12.43 

 11.84 

 3.18 

 9.63 



239.13 

 19.11 



451.19 

 23.91 



In noting the changes of the constituents of the blood of the Emys terrapin during 

 starvation, we might be led into error if the relative quantities of the different con- 



