we obtain the value 21.1. This number coincides with the atomic volumes of zirconium (21.7), cerium (21.1), lanthanum (22.6), and didymium (21.5). This analogy is certainly not due to chance; it rather confirms the opinion which I have put forward in connection with my researches on the selenites, on certain chloro-platinates and chloro-platinites, etc., that the elements of the rare earths form a series of quadrivalent metals. * * * * * [AMERICAN CHEMICAL JOURNAL.] FRIEDRICH WOeHLER. No one but a chemist can appreciate the full significance of the brief message which came to us a month ago without warning--"Woehler is dead!" What need be added to it? No chemist was better known or more honored than Woehler, and none ever deserved distinction and honor more than he. His life was made up of a series of brilliant successes, which not only compelled the admiration of the world at large, but directed the thoughts of his fellow workers, and led to results of the highest importance to science. It is impossible in a few words to give a correct account of the work of Woehler, and to show in what way his life and work have been of such great value to chemistry. Could he himself direct the preparation of this notice, the writer knows that his advice would be, "Keep to the facts." So far as any one phrase can characterize the teachings of Woehler, that one does it; and though enthusiasm prompts to eulogy, let us rather recall the plain facts of his life, and let them, in the main, speak for themselves.[1] [Footnote 1: See Kopp's "Geschichte der Chemie," iv., 440.]