284 



PHYSIOLOGY AT THE FARM. 



Caseine (cheese), 

 Butter, 

 Milk-sugar, 

 Saline matter, 

 Water, 



4.48 

 3.13 



4.77 



0.60 



87.02 



100.00 



Table of the composition of the ash in two specimens of 

 milk from different cows. In 1000 pounds of milk there 



were 



i. ii. 



Phosphate of lime, . . . 2.31 Ib. 3.44 Ib. 



Phosphate of magnesia, . . 0.42 0.64 



Phosphate of peroxide of iron, . 0.07 



Chloride of potassium, . . 1.44 



Chloride of sodium, . . . 0.24 



Free soda, . . . . 0.42 



The milk-globules vary considerably in size, as is shown 

 by fig. 18 some being mere points, others measuring about 



Fig. 18. 



0.07 

 1.83 

 0.34 

 0.45 



ooQ o 



oO, 



GLOBULES IN Cows' MILK. 



l-2000th of an inch in diameter. Their number diminishes as 

 the poverty of the milk increases. 



Here ends our notice of the Functions of Assimilation and 

 of Eeproduction. The Functions of Eelation do not fall within 

 our plan. 



