39 
weights of the IT. S. P., VIII. of the U. S. P. (1880), of the Ph. 
Germ., IV, and of the U. S. P. (1890). — Ibid., p. 368. 
The Spanish Pharmacopoeia contains a table of atomic weights 
based on 0=16 and 11=1.008. — Farmacopea Oficial Espanola, 1905, 
p. 19. 
The Netherlands Pharmacopoeia also includes an atomic weight 
table based on 0=16 and 11=1.008. — Pharmacopea Nederlandica, 
1905, p. 524. 
The report of the international committee on atomic weights an- 
nounces that the vote of the larger committee has decided in favor 
of publishing a single table of atomic weights in future, based on 
0=16, in place of the double table formerly published. — J. Am. 
Chem. Soc., 1905, v. 27, p. 7. 
Meyer, Julius, discusses the methods followed in the estimation of 
atomic weights and outlines some suggestions on the estimation of 
atomic weight mathematically. — Ztschr. f. anorgan. Chem., 1905, v. 
43, pp. 242-250. 
Werner, A. discusses the periodic system, with a proposed elabora- 
tion and systematic arrangement of the elements. — Ber. d. deutsch. 
chem. Gesellsch., 1905, v. 39, pp. 914^921. 
Hanssen, C. J. T., reports on the weights of oxygen, nitrogen, and 
hydrogen. — Chem. News, Lond., 1905, v. 92, p. 2394. 
Leduc, A., discusses the atomic weights of hydrogen and nitrogen. — 
Compt.-rend. Acad. d. sc. Paris, 1905, v. 140 ; abstract in Chem. News, 
Lond., v. 91, p. 176. 
Guye, Phillippe A., reports new researches on the atomic weight of 
nitrogen. — Chem. News, Lond., 1905, v. 92, pp. 261, 275, 285. 
Gray, Robert Whytlaw, discusses the atomic weight of nitrogen. — 
J. Chem. Soc. Lond., 1905, v. 87, part 2, pp. 1601-1620. 
Dixon, Harold B., and Edgar, E. C., discuss an attempt to de- 
termine the equivalent of chlorine by direct burning with hydrogen. — 
Chem. News, Lond., 1905, v. 91, p. 37. 
Baxter, George Paul, discusses the revision of the atomic weight of 
iodine. — J. Am. Chem. Soc., 1905, v. 27, pp. 876-887. 
Kothner and Aeuer discuss the atomic weight of iodine. — Chem. 
News, Lond., 1905, v. 91, p. 37. 
Richards and Wells discuss the atomic weights of sodium and 
chlorine. — J. Am. Chem. Soc., 1905, v. 27, pp. 459-528. 
Parsons, Charles Lathrop, contributes a note on the atomic weights 
of carbon and beryllium. — Ibid., pp. 1204-1206. 
5. INDICATORS. 
Clowes, G H., discusses the theory of indicators and its bearing 
on the analysis of physiological solution by means of volumetric 
methods.— Abstr. in J. Am. Chem. Soc., 1905, v. 27, p. 452. 
