264 Scientific Intelligence. 
acid, then boil the milk, allow it to cool, and shake it with wre all the 
fatty matter will be taken up. J. L. 8, 
24. Composition of the Urine of Herbivorous Animals; by M. 
Boussineautt, (Annales de Chim. et de Phys., Sept. 1845, p. 97. -— 
The details of these analyses are given at length, but all that can be 
presented here is a statement of the results. 
Urine of Hog, 
fed on potatoes. UrineofCow. Urine of Horse. 
90 18°49 31:00 
Urea, 
Bicarbonate of potash, 10°74 16-12 15°50 
Carbonate of magnesia, 0:87 4°74 4°16 
Carbonate of lime, traces 0°55 10°82 
Sulphate of potash, 1-98 3°60 1-18 
Phosphate of potash, 1-02 
Chloride of sodium, 1-28 1-52 0°74 
Lactate of an alkali, undetermined. 
Silica, 0:07 traces 1-01 
Hippurate of potash, 16°51 4°74 
Lactate of potash, 17°16 11-28 
Lactate of soda, 8:81 
Water or Organic matter, § 979°14 921-32 910-76 
1000-00 1000-00 1000-00 
In the urine of the hog, no hippuric acid was detected. M. B. thinks 
it may have been owing to the exclusive nature of the diet. No phos- 
phates were detected in the urine either of the cow or horse. J. L. 8. 
25. Researches on the Composition of the Yolk of Egg; by M. Gos- 
LEY, (Comptes Rendus, Sept., 1845.)—These researches have been at- 
tended with two curious results. 
Ist. The discovery of a new acid not before known to exist in the 
animal economy, and but just produced artificially by M. Pelouze— 
the phospho-glyceric acid, (a compound acid of glycerine and phos- 
phoric acid.) This acid in the yolk is in combination with ammonia. 
d. The discovery of margaric and oleic acids in combination with 
ammonia is a curious physiological fact, for hitherto the acids have only 
been found in combination with glycerine or with soda, in animal 
products. J. L. S. 
26. Water from the Artesian Well of Grenelle, at Paris, (Chemist, 
July, 1845, from Med. Gaz., June, 1845.)—The Artesian well at Gre- 
nelle is the deepest but one in the world,* extending down 1794 feet, 
traversing chalk in the greater part of itscourse. Its temperature is 82° 
* The well of Mondrof is over 2200 feet deep, and they are still boring. It re- 
quires 3 hours to draw up the augur. The well is 1 foot diameter at the mouth, 
and 7 inches at the bottom. The water rises with a temperature of 95° Fahr. 
