3U 



eating three lemons in the day, a deposit of two grains 

 of uric acid took place; which entirely disappeared, upon 

 his omitting the lemons, and living chiefly on animal food. 



From the seventh experiiiient, on the same person, that 

 a diet of animal food, for forty-eight hours, was produc- 

 tive of no deposit; but amounted to half a grain, upon 

 living, during the same interval, upon a diet, chiefly ve- 

 getable, with the addition of three lemons. 



I shall finally conclude with the result of his tenth ex- 

 periment, upon a young man, aet. 19j in good health. 

 Here the natural deposit, of one grain, was increased to 

 two, by eating ope pound, and a half of apples only. In 

 confirmation of the result of this experiment, I be^ leave 

 to add, that, in the course of my -attendance upon chil- 

 dren, I had often occasion to observe^ that tliis aeid ex- 

 cretion was considerably increasedj by the use of grapes, 

 persevered in for a d&y or two only. 



We may now, tlierefore, presume to assert^ from the 

 medical history of this disease, as delivered in the first 

 part of this essay, as well as from experiments, instituted 

 in, and out of, the body; that acids, and acescent in- 

 gesta, may be considered, as remote causes of gravelly 

 complaints. 



