THE two new sections of Dr. Friend's “Inorganic Chemistry” deal with (i) hydrogen, the alkali metals, the ammonium-compounds, and the coinage-group of metals, and (2) oxygen, jvater, and hydrogen ...
THE German edition of this Dutch work was noticed in NATURE, vol. lxii. p. 598, October 18, 1900. A reperusal shows that considerable improvements have been made in the English version. The ...