165 
tilled from the drug as directed in a number of British formulas, 
is finer, but the water is not transparent and requires filtering. He 
suggests that the waters be made in larger stock containers, an 
excess of oil being allowed to remain in contact with the water and 
the shelf bottles filled from this, as needed, b} T filtering through a 
wet filter. — Am. J. Pharm., Phila., 190b, v. 78, p. 118. 
Stevens, A. B., says that some good practical men believe that 
better results are obtained bv using magnesium carbonate than by 
using talc in the manufacture of aromatic waters. The method for 
the manufacture of this class of preparations has been changed every 
decade for the past forty years, and we need not be surprised to find 
it changed again in the next revision. Magnesium carbonate in 1870, 
absorbent cotton in 1880, calcium carbonate in 1890, and talc in 1900. 
What next ? — Proc. Michigan Pharm. Ass., 1906, p. 96. 
Medicated waters in the Ph. Xdl. IV, unless otherwise specified, are 
to be prepared by distillation from the drug. The directions usually 
require a certain time for maceration of the crude drug. — Pharm. 
Zentralh., 1906, v. 47, p. 397. 
Wippern, Franz, suggests that the coming revision of the Ph. 
Germ, should permit the preparing of medicated waters by solution 
of volatile oils with the inclusion of the requirement that those waters 
contain a minimum content of 0.06 per cent. — Pharm. Ztg. Berl., 
1906, v. 51, p. 806. 
Ci K ” (Pharm. Ztg., li, Xo. 51, 1906, 565) discusses the question of 
preparing aromatic waters and advocates preparing them directly 
from the volatile oils instead of from the drug. A formula for mak- 
ing aromatic waters is given. — Proc. Am. Pharm. Ass., 1906, v. 54, 
p. 614. 
Herissey, H., commenting on the Ph. Xdl. IV, notes that the dis- 
tilled aqua laurocerasi contains 0.1 per cent of hydrocyanic acid; the 
preparation of orange flower water is not indicated. In addition to 
these two and simple distilled water he mentions distilled water of 
cinnamon. (10 per cent), of fennel (4 per cent), and of mentha 
piperita, and notes that the rose water of the Ph. Xdl. IV is prepared 
by agitating 1 gm. of the essence of rose with 5.000 c. c. of water and 
filtering. — J. de pharm. et de chiin., Par., 1906, v. 23, p. 480. 
AQUA. 
Leffman, Henry, criticises severely the standard for water; 500 
parts per million total solids, equivalent to 29 grains per gallon, is 
an amount unusual in natural waters, except from deep sources. 
Even with this limit the water must be neutral to litmus paper, a 
condition to which high-class natural waters will not conform, and 
yet for the rejection of which no good reason seems to be offered. To 
