204 
MALTUM. 
Trillich, Heinrich, discusses the nature and identity of malt, and 
gives a definition which provides that this substance is the artificially 
germinated grain whose growth has progressed sufficiently to cause 
the contained ferment to change the available starch to malt dextrin 
and sugar. — Ztschr. f. oefentl. Chem., 1905, v. 11, pp. 259-261. 
MANGANI DIOXIDUM PRJECIPITATUM. 
Kebler, Lyman F., reports finding a TO per cent pure manganese 
dioxide which contained sodium chloride, calcium, and magnesium. — 
Proc. Am. Pharm. Ass., 1905, v. 53, p. 185. 
Groger, Max, outlines a modification of the method devised by 
Yolhard for determining a manganese in the presence of chromium. 
In place of zinc oxide or zinc hydroxide he uses a mixture of basic 
zinc sulphate with a solution of normal zinc sulphate. — Chem. Ztg., 
Cothen, 1905, v. 29, p. 987. 
Schlagdenhauffen and Keeb report an extensive investigation on the 
presence of manganese in various animal and vegetable substances. — 
J. de Pharm. v. Elsass-Lothr., 1905, v. 32, pp. 47-61, 80-89, and 
114-120. 
MARRUBIUM. 
Eberle, E. G., mentions Marrubium vulgare in his list of medicinal 
plants of Texas. — Proc. Am. Pharm. Ass., 1905, v. 53, p. 304. 
MASSA HYDRARGYRI. 
Lowe, Clement B., asserts that the U. S. P. formula for mass of 
mercury is satisfactory. Pie overcomes the tendency to drying by 
placing a common school sponge, slightly moistened with water, in 
the jar for six or eight hours. — Proc. Pennsylvania Pharm. Ass., 1905, 
p. 138. 
MATICO. 
Thoms, H., discusses the origin, variability, and uses of matico oil 
and includes a report of an investigation into the chemistry of the 
substance. In a second communication he discusses the composition 
of matico oil and the chemistry of its constituents. — Arb. a. d. Pharm. 
Inst. d. Univer., Berlin, 1905, v. 2, pp. 100-115 and 120-126. 
MATRICARIA. 
Eberle, E. G., mentions Matricaria cho,momilla among the medicinal 
plants of Texas. — Proc. Am. Pharm. Ass., 1905, v. 53, p. 304. 
MEL. 
An abstract from the Helfenberger Annalen points out that the 
test for dextrin, as given in the Ph. Germ., IY, is too delicate, and 
