It may be that we are unduly prejudiced in favor of our own terminology, but it seems to us that the expression “form” will prove to be the most appropriate word. Form is neither quality nor quantity, but form can produce qualities. Let the same qualities, say of chemical elements, combine in different forms, and we shall obtain substances with different qualities. Figure and melody are special kinds of form. Forms consist in and originate through combination, and the unity produced through a special form-combination is actually something new, as much so as if it were a special-creation act. This wonderful power of form makes the study of form all-important in all branches of science. A neglect of the study of form will lead either to materialism when matter and motion are conceived as the only quality-producing factors, or to agnosticism as soon as a deeper inquiry proves that matter and motion are not sufficient to explain the most essential properties of the objects of investigation. We cannot judge from the present article how much Ehrenfels and Meinong are in sympathy with our standpoint, but we can see that their efforts are in the same direction. The second article is a rejoinder by Prof. C. Stumpf of Munich to Prof. W. Wundt’s reply to his critic. Professor Stumpf complains of Wundt that he ignored the points raised in his criticism and that his “Antikritik” consisted only of “a chain of distortions and insinuations.” F. Schumann publishes his results regarding sensibility for the difference between smallest quantities of time. He employed a chronograph modified in two respects from Wundt’s chronograph. First he replaced the expensive chronometer by a treading-wheel and introduced Pfeil’s time-marker, which, as he thinks, is handier as well as more precise than Wundt’s time-marker. Schumann’s results agree with the results of Professor Mach showing a maximum of 0.3-0.4 seconds, the relation of the perceptible difference to the normal time being in different persons only 0.022. (Hamburg and Leipsic: L. Voss.) κρς. PHILOSOPHISCHES JAHRBUCH. Vol. IV. No. 3. CONTENTS: ENTHAELT DIE CHEMISCH-PHYSIKALISCHE ATOMTHEORIE WIDERSPRUECHE? By _S. J. Linsmeier_. NOCH EINMAL ZU PLATON’S TIMAEUS p. 51 E-p. 52 B. By _Clemens Baeumker_. DAS GESETZ VON DER ERHALTUNG DES LEBENS. (Zusatz der Redaction.) By _W. Frye_. DIE LOGISCHEN GAENGE DES DENKENS. By _Dr. G. Grupp_. W. WUNDT’S SYSTEM DER PHILOSOPHIE. By _C. Gutberlet_. RECENSIONEN UND REFERATE.