290 Chemistry. [Lecture 34, 



14. Of the metals^ only iron and manganese 

 have been found in animal bodies. 



The parts of animals consist principally of the 

 following matters : 



1. Azote. 8. Soda. 



2. Carbon, 9. Potass. 



3. Hydrogen. 10. Muriatic acid. 



4. Oxygen. 11. Magnesia. 



5. Phosphorus. 12. Silica, 



6. Lime. 13. Iron. 



7. Sulphur. 14. Manganese. 



The first six are so much more abundant than 

 the rest that animal matter may be generally 

 considered as composed of them;. the first four 

 constitute the soft parts, and the other two form 

 the bases of the hard parts. Silica is only found 

 in cases of disease. 



