400 Neue Literatur, XIII, 3. 



b. Ocular. 



Cowl, W., Ueber allgemein verwendbare Oculare mit abstuf barer Irisblende, 



(Verhandl. d. Anat. Gesellsch. X, Berlin 1896; Ergänzungsh. z. Anat. 



Anz. Bd. Xn, p. 178). 

 (Schiemenz, P.,) Leitz new drawing eye-pieces (Journ. R. Microsc. Soc. 



1896, pt. 3, p. 351; vgl. diese Zeitschr. Bd. XII, 1895, p. 289). 

 Zacliarias, O., Ein neues Sucher- Ocular mit Irisblende (Forschungsber. 



d. Biol. Station Plön, Bd. IV, 1896, p. 288). 



c. Beleuchtungsapparate. 



(Behrens, W.,) Meyer's microscope-stage with iris - diaphragm (Journ. R. 



Microsc. Soc. 1896, pt. 3, p. 350; vgl. 1. c. pt. 2, p. 248; diese Zeitschr. 



Bd. XII, 1895, p. 292). 

 (Premont, Ch.,) Vertical-Illuminator (Zeitschr. f. Instrumentenk. Bd. XVI, 



1896, H. 6, p. 187; ygl. Comptes Rend. de l'Acad. des Sc, Paris. 



t, CXXI, 1896, p. 321). 



d. Verschiedenes. 



Ambronn, H., Farbenerscheinungen an den Grenzen farbloser Objecte im 



Mikroskop (Ber, d. Verhandl, d. K. Sächsischen Gesellsch. d. Wiss, 



Mathem. - natw, Cl. 1896, No. 1, p, 134; vgl. Journ. R, Microsc, 



Soc. 1896, pt. 4, p, 468). 

 Berry, G, A., Note on the focus of concavo - convex lenses the surfaces 



of which are of equal curvature (Proceed, R, Soc, of Edinburgh vol, 



XX, 1892—95, p, 192). 

 Rayleigh, On the theory of optical Images, with special reference to the 



microscope (Journ. of Sei. vol. XLII, 1896, no. 255, p. 167). 

 Tatham, J., üse of the ordinary binocular for dissecting (Journ. Queckett 



Microsc. Club, ser. 2, vol. V, 1896, no, 6, p, 206 ; vgl, The Microsc. n, s. 



vol. V, 1896, no. 42, p. 84), 



3. Mikrophotographie. 



Borden , W. C, , Practical photomicrography (Med. Record vol, XLIX, 



1896, 5, p, 385; p. 617). 



