Page:Mind (New Series) Volume 15.djvu/149

 PHILOSOPHICAL PERIODICALS. 135 body normal or inclined.] B. Hammer. 'Zur experinientellen Kritik der Theorie der Aufmerksamkeitsschwankungen. ' [Visual fluctuation is due to local adaptation and change of fixation ; auditory fluctuation does not exist.] Literaturbericht. Bd. xxxvii., Heft 6. R. P. Angler. 4 Vergleichende Bestimmungen der Peripheriewerte des trichromatischen und des deuteranopischen Auges.' [The brightness maximum of the peripheral curve of the deuteranope (so-called green blind) is definitely shifted towards the long-wave end of the spectrum.] Q-. Alexander and R. Barany. ' Psychophysiologische Untersuchungen uber die Bedeutung des Statolithenapparates, u.s.w. II.' [Report of further visual experi- ments, and of forehead-line experiments with deaf mutes. Under these experimental conditions the statolith apparatus plays no part in the formation of ideas.] Literaturbericht. Bd. xxxviii., Heft. 1. K. L. Schaefer and P. Mahner. ' Vergleichende psychophysiologische Ver- suche an taubstummen, blinden und normalsinnigen Kindern.' [Experi- ments with lifted weights. The percentage of r-cases is greatest with the deaf mutes, least with the normal children.] G. Alexander. ' Zur Frage der phylogenetischen, vikariierenden Ausbildung der Sinnesor- gane : tiber das statische und das Gehororgan von Tieren mit kongenital defektem Sehapparat ; Maulwurf (Talpa europsea) und Blindmaus (Spalax typhlus).' R. Barany. ' Experimenteller Beitrag zur Psychologie des Urteils : tiber mehrere von dem Grade der Aufmerksamkeit abhangige Urteilsphanomene im Gebiete unsicherer taktiler Empfindungen.' [Ex- periments on the determination of the ' vertical in space ' by means of tactual sensations ; explanation of errors by direction, degree and inertia of attention.] Literaturbericht. Bd. xxxviii., Heft 2 and 3. A. von Szily. ' Bewegungsnachbild und Bewegungskontrast.' [The after-image of movement is to be physiologically, not psychologically explained ; it is not even an illusion of sense, since its quality and quantity can always be foretold, and it remains the same under uniform con- ditions of stimulation. In all probability, its immediate physiological substrate is central : this brings it into connexion with Exner's ' sen- sation of movement,' the existence and primitive character of which are further vouched for by the phenomena of movement contrast (cloud contrast and contour contrast).] H. Piper. ' Beobachtungen an eineni Fall von totaler Farbenblindheit des Netzhautzentrums im einen und von Violettenblindheit des anderen Auges.' [The violet blind- ness can be explained in terms of the Young- Helmholtz theory. The co-existence of a daylight and a twilight total colour-blindness in the right eye speaks for von Kries's theory. The daylight blindness itself may be tentatively explained either from the Fick-Konig modification of the Helmholtz theory, or by a combination of von Kries's and Hering's theories.] H. Zwaardemaker. ' Eiechend Schmecken.' [Repetition of Nagel s experiment gives a positive result : Disse's beakers in the regio olfactoria may, therefore, mediate taste sensation.] W. Nagel. 4 Beuierkungen zu der vorstehenden Arbeit von Zwaardemaker "Riechend Schmecken ".' [Apart from individual differences, the taste sensation may come from the epiglottis.] Literaturbericht. Erwiderungen. P. Weinmann. 'Zur Struktur der Melodic.' H.C.Stevens. 'Schwankun- gen der Zeitschiitzung und vasomotorische Kurven.' Bd. xxxviii., Heft 4. T. Lipps. ' Zur Verstandigung liber die geometrischoptischen Tauschun- gen.' [A re-statement of the author's well-known theory of the geometrical optical illusions, with special reference to the work of Wundt, Schumann and Pearce.] W. Sternberg. ' Irrttimliches und Tatsachliches aus der Physiologic des siissen Geschmackes.' [Deals with certain artificial synthetic nitrogenous sweet-tasting substances of the cyclical or aro- matic series (dulcin, glncin, and homologous and isoineric compounds).