M- OF THE MILK. 



NOTES 



(A) The lower portion of cows' milk that had stood some days 



was found by Berzelius * to have a specific gravity of 1.033. 

 and to contain 



Water - - - - 988.75 



Cheese with a trace of butter - - - 28.00 



' Sugar of milk 35.00 



Muriate of potash - 1.7^ 



Phosphate of potash - 0.25 



Lactic acid, acetate of potash, with a trace of i r nn 



lactate of iron J OW 



Earthy phosphates ----- 0.30 



1000 00 



The supernatant cream contained 



Butter " 4 - r> 



3. 5 



^ ueese 



Whey 92. 



■f 



(B) It may be worth while here to take a general view of the 

 subject of generation. 



Life never occurs spontaneously in matter, but is always pro- 

 pagated from an organised system already endowed with it. Such, 

 at lea-t, appears to be the inevitable conclusion from the facts 

 within our observation. No instance has been known of a plant 

 or animal of any species, whose mode of multiplication may be 

 always easily examined, springing up spontaneously ; and although 

 in many other cases the origin often cannot be discovered, yet 

 surely our inability to discover the mode of propagation does not 

 justify us in denying the existence of it ; but, the general ana- 

 logy, the discovery of the modes in which many species propa- 

 gate which were formerly adduced as instances of spontaneous 



• Medico-Chirvrgical Transactions. V. ill. 



