THE EARTHY AND ALKALINE PHOSPHATES. 337 



(6.) A child twenty months old, fed on bread with some meat and milk, gave in 

 the water passed during the day, — 



Earthy phosphates. Spec, gr. Alkaline phosphates. 



•32 per 1000 urine. 1012*2 4*00 per 1000 urine. 



(7.) On the same food. 



Earthy phosphates. Spec. gr. Alkaline phosphates. 



•33 per 100 urine. 1017*4 4*60 per 1000 urine. 



II. I next endeavoured to ascertain on what the variations depended, and first with 

 I'egard to food. For three consecutive days bread alone was taken with water, tea 

 and wine, at the same hours as in the previous experiments. 



(8.) The first day brown bread only. 



Earthy phosphates. Spec, gr. Alkaline phosphates. 



5J o'clock, evening '27 per 1000 urine 1025'7 7*89 per 1000 urine 



11 at night. 1*37 1030*0 6*39 



(9.) The second day no analysis was made. The third day white bread only. 



Earthy phosphates. Spec. gr. Alkaline phosphates. 



6 o'clock, evening ^37 per 1000 urine 1024*7 8*19 per 1000 urine 



11 o'clock, evening 1*86 1032*1 5*56 



(10.) Meat only was taken for three days with water, wine, and tea. First day 

 exercise very little. 



Earthy phosphates. Spec, gr. Alkaline phosphates. 



6 o'clock, evening *42 per 1000 urine 1024*3 4*04 per 1000 urine 



11 o'clock, evening 1*11 1021*9 4*21 



(11.) The second day no analysis was made. The third day exercise rather more. 



Earthy phosphates. Spec. gr. Alkaline phosphates. 



6 o'clock, evening '48 per 1000 urine 1024*7 5*06 per 1000 urine 



11 o'clock, evening *8l 1024*8 4*31 



(12.) Meat only for dinner with distilled water, and tea with distilled water. 



Earthy phosphates. Spec, gr. 



5J o'clock, evening *33 per 1000 urine 1025*7 



9J o'clock, evening *67 1026*5 



From the comparison of these numbers with the previously given average, it ap- 

 pears that the earthy phosphates are not materially influenced by a diet of meat or 

 diet of bread ; that they are in excess after either is taken ; and that even when animal 

 food and distilled water alone were taken there was after food a decided increase, 

 though the quantity was considerably below the average. 



That the alkaline phosphates were in excess when bread alone was taken for food ; 

 and when meat alone was taken there was a considerable falling off in the amount 

 excreted. 



2 y 2 



