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Some of this filtered water I poured on a portion of wine, in order 

 to fee wliether it would have any effe6l on the faline particles which 

 are in wine, but, after it had flood feveral hoars, I could not perceive 

 any alteration ; I therefore determined to try the experiment with 

 vinegar. And, as the vinegar which is commonly fold, is forthemoft 

 jiart adulterated, I took \\ hite wine vinegar, which I had kept with 

 marygold-leaves in it for five and twenty years, and was uncom- 

 monly firong, and mixed with it a fmall quantity of the before men- 

 tioned liquor, but I faw no other faline particles in it than thofe 

 which are found in vinegar. I obferved, indeed, feveral globules of 

 oil, which in all probability proceeded from the mar3'^gold flowers. 



But, W'hen I took a fmall quantity of new milk, and mixed with it a 

 very little of the before mentioned water, on bringing it before my eye 

 as foon as I poITibly could, I faw moft of thofe round particles 

 which caufe its white colour, curdled together, and an inconceivable 

 number of fmaller particles, fwimming among the curdled ones, from 

 whence I concluded, that thefe fmaller particles were of a different 

 nature from the coagulated ones ; I alfo faw in the fluid or whey 

 various pellucid globules of different fizes, the fmalleft of which were 

 jio larger than globules of blood, and the largeft of thefe pellucid 

 globules were twenty-five times that fize ; all thefe I concluded to be 

 tliofe particles in the milk, of which butter is compofed. 



From thefe obfervations it "appears, that this liquor called Runnet, 

 which coagulates or curdles milk, does not take any effeft on wine 

 or vinegar, neither of which are adapted to the food of calves. 



I was informed by the butcher, that the fame curdling of milk, 

 took place in the flomachs of fucking lambs ; and moreover, that if 

 lambs were taken from their dams and fattened with cow's milk,. it 

 would be curdled in larger quantities, by reafon, (as he judicioufly 

 added) that ewes milk has more particles of fat in it than that of 



QOWS. 



