COMPARATIVE WEIGHTS OF THE LIVER. 



Comparative Weights of the Liver of Animals. 



113 



FISHES. 



Weight of the body of Trygon sabina (Stingray) female 

 Trygon sabina (Stingray foetus) 

 Zygoma malleus (Hammerhead Shark) 

 Zygmia malleus (Hammerhead Shark) 

 Lepisostens osseas (Garfish) 

 Lepisosteus osseus (Garfish) 



REPTILES. 



Rana catesbiana (Bullfrog) 

 Heterodon niger (Black Viper) 

 Psammophis flagelliformis (Coachwhip Snake) 

 Coluber guttatus (Corn Snake) . 

 Coluber constrictor (Black Snake) 

 Crotalus adamanteus (Rattlesnake) 

 Alligator 3Iississippiensis (Alligator), male 

 Chelonia caretta (Loggerhead Turtle) . 

 Chelonura serpentina (Snapping Turtle) 

 Emys terrapin (Saltwater Terrapin) . 

 Emys reticulata (Chicken Terrapin) 

 Emys serrata (Yellow-bellied Terrapin) 

 Emys serrata (Yellow-bellied Terrapin) 

 Emys serrata (Yellow-bellied Terrapin) 

 Testudo polyphemus (Gopher) . 

 " Testudo polyphemus (Gopher) . 



BIRDS. 



Turtle Dove, male 



Meleagris gallopavo (Wild Turkey) 



Meleagris gallopavo (Wild Turkey) 



Picas erythrocephalus (Redheaded Woodpecker) 



Night Heron . 



Tantalus loculator (Wood Ibis) 



Tantalus locxdator (Wood Ibis) 



Syrnium nebulosum (Barred Owl) 



Cathartes atratus (Black Buzzard) 



MAMMALS. 



Didelphis Virginianus (Opossum) 



" Common Sheep 



Sciurus Carolinensis (Gray Squirrel) 

 Sciurus capistratus (Fox Squirrel) 



" Cervus Virginianus (Foetus of Deer) 



Cervus Virginianus (Foetus of Deer) 

 Mus rattus (Rat just born) 



" Mm rattus (Rat just born) 



Mus rattus (Rat half grown) . 

 Procyon lotor (Raccoon), female 

 Procyon lotor (Raccoon), female 

 Procyon lotor (Raccoon), female 

 Procyon lotor (Raccoon, just born) 

 " " Pointer Dog, female . 



" " Common Cat, female . 



Number of times the 

 weight of its liver. 



18 

 16 

 25 

 41 

 75 

 62 



55 

 26 

 71 

 64 

 57 

 55 

 73 

 47 

 42 

 53 

 18 

 36 

 25 

 48 

 50 

 45 



77 

 70 

 67 

 33 

 22 

 68 

 64 

 56 

 47 



26 

 61 

 43 

 48 

 35 

 42 

 39 

 36 

 20 

 25 

 19 

 23 

 24 

 32 

 36 



M. CI. Bernard and other physiologists consider one essential function of the 

 liver to be the elaboration of the blood. Chemical analyses have shown that the 

 blood-corpuscles are more numerous in the blood after passing out of this organ than 

 15 



