24 WATER AND SOLID CONSTITUENTS OF BLOOD AND SERUM. 



From this table we learn that the blood becomes more concentrated as the organs, 

 and apparatus, and intelligence of animals are developed. 



Table showing the Amounts, in 1000 parts, of the Water and Solid Matters of the Blood and Serum 



of different Animals. 



COLD-BLOODED ANIMALS. 

 BLOOD OF INVERTEBRATE ANIMALS. 



