APPENDIX. 505 



NOTE 8. Ultimate composition of fibrin from ox-blood. (Mulder.) 



Atoms. Calculated. 



Carbon . . . 54-56 400 54-90 



Hydrogen . . . 6*90 310 6'95 



Nitrogen . . . 15-72 50 15-89 



Oxygen . . . 22-13 120 21-55 



Phosphorus . . 0-33 1 0-35 



Sulphur . . . 0-36 1 0-36 



Hence, in its composition, it is identical with the albumen of eggs. 



NOTE 9, Ultimate composition of casein from cows' milk. 

 (Mulder.) 



Atoms. Calculated. 



Carbon . . . 54-96 400 55-10 



Hydrogen . . . 7'15 310 6*97 



Nitrogen . . . 15-80 50 15-95 



Oxygen . . . 21-73 120 21-62 



Sulphur . . . 0-36 1 0-36 



NOTE 10. Ultimate composition of crystallin from the eye. 



(Mulder.) 



Carbon . . 55-39 



Hydrogen . . 6-94 



Nitrogen . . 16-51 hence it closely resembles casein. 



Oxygen . . 20-91 



Sulphur . . . 0-25 



NOTE 11. Ultimate composition of globulin. 



The analysis referred to in the text was published by Mulder in the ' Bulletin' 

 for 1839. In his recent work on the ' Chemistry of Animal and Vegetable Physiology/ 

 he states that, although a protein-compound, its real composition is not yet known. 



NOTE 12. Ultimate composition of pepsin. (Vogel. 



Carbon . . . 57'718 



Hydrogen . . . 5-666 



Nitrogen . . . 21-088 



Oxygen . . . 16-064 



