458 
Kelhofer, W., presents a table for the ready determination of in- 
vert sugar by weighing the dried precipitate obtained by means of 
Fehling’s solution. — Ztschr. f. anal. Chem. Wiesb., 1906, v. 45, pp. 
88-91, 745-747. 
Schoorl and van Kalmuthout critically review the several color re- 
actions for the more important varieties of sugar and point out some 
of the shortcomings or advantages they possess. — Ber. d. deutsch. 
chem. Gesellsch., Berl., 1906, v. 39, pp. 280-285. 
Seaman, F. A., uses cut-loaf sugar in the making of syrups and as- 
serts that they keep better. — Proc. Am. Pharm. Ass., 1906, v. 54, p. 264. 
Le Baillif, A., concludes that the blue deposit in syrups of ether 
and codeine is due to the precipitation of the coloring matter used 
to “ blue " beet sugar in refining. Cane sugar gave no such colora- 
tion. — Bull, cles sc. pharmacol. Par., 1906, v. 13, p. 558. 
Trillat, A., (Acad, des sc., 19. II. 1906, v. 142, p. 454) says that 
when sugar is caramelized not only is formaldehyde disengaged, but 
the caramel formed contains formic aldehyde in quantity sufficient, 
either free or combined, to insure the infermentescibility of the 
sugar. — Ibid., p. Ill; see also p. 117. 
SACCHARUM LACTIS. 
Nielson, R., (Pharm. Ztg., 1906, v. 51,- no. 3, p. 31) in a Danish 
patent describes the method for the technical preparation of milk 
sugar. — Proc. Am. Pharm. Ass., 1906, v. 54, p. 911. 
Patein, M. G., outlines a number of methods used for the estima- 
tion of lactose in milk. — Bull. Soc. de chim., Par., 1906, v. 35, pp. 
1022-1030. 
Haupt, M., suggests that as an additional test for milk sugar it 
should be required that one part of milk sugar dissolved in two 
parts of hot water should give a clear, colorless solution. — Apoth. 
Ztg. Berl., 1906, v. 21, p. 953. 
Leffman, H., suggests the reversal of the Badouin reaction for 
sesame oil as a reaction for the detection of saccharose in sugar of 
milk (Chem. Ztg., 1906). — Jahresb. d. Pharm. Gotting., 1906, 1907, 
v. 41, p. 229. 
Riedel's Berichte (Berl. 1906, pp. 37-39) points out that the tests 
provided in the Ph. Germ. IV for sugar of milk are quite inade- 
quate, shows that samples found to be contaminated with metallic 
impurities, dirt, acid, and fungus growths still complied, in a general 
way, with the requirements of the pharmacopoeia. A tabulated 
resume of the examination of 16 samples of sugar of milk is ap- 
pended. 
Evans Sons Lescher and Webb report on the examination of a 
sample of ** Lactose *' sugar of American origin which was found to T 
