XXI, 2. Neue Literatur. 2G;') 



e. Verschiedenes. 



Davis, D. J. A., A methotl of microscopic Observation by means of lateral 



illumination (Transact. of tlie Chicago pathol. Soc. vol. VI, 1904 



no. 4, p. 90). 

 Gleichen , A. , Die Vergrößerung des Mikroskops unter Berücksichtigung 



der Refraktion und Akkommodation des Auges (Mechaniker Bd. Xll, 



1904, p. 135). 

 Kalälme, A. , Über das Woousche Lichtfilter für ultraviolette Strahlen 



(Phys. Zeitschr. Bd. V, 1904, p. 415). 

 Merlin , A. A. C. E. , Amphipleura pellucida (resolution of) (English 



Mechanic vol. LXXIX, 1904, p. 284). 

 Pflüger, A., Die Quecksilberlampe als ultraviolette Lichtquelle (Phys. 



Zeitschr. Bd. V, 1904, p. 414). 

 Schelfer, W., Anleitung zur Stereoskopie (Photogr. Bibl. Bd. XXI). Berlin 



(Gustav Sclnuidt) 1904. 99 pp. 2-50 M. 



Treadle, Pinnuhiria nobihs (resolution ofj (English Mechanic vol. LXXVIII, 



1904, p. 554; vol. LXXIX, 1904, p. 14, 35). 

 Treadle, Diatoms resolving (ibid. vol. LXXIX, 1904, p. 84). 

 Treadle, Amphipleura resolving (ibid. vol. LXXIX, 1904, p. G3). 

 Villagio, Resolution of Diatoms etc. (ibid. vol. LXXIX, 1904, p. 193). 

 (Zschimmer, E.,) New kinds of glass of increased ultra-violet transparency 



(Journ. R. Microsc. Soc. 1904, pt. 4, p. 464; vgl. Zeitschr. f. Instrumentenk. 



Bd. XXIII, 1903, p. 360). 



3. Mikrophotographie und Projektion. 



Crosbie, F., Directions for Photomicrography (Lancet 1903, p. 233). 

 (Forgan, W.,) Photomicrography of rock sections (Journ. R. Microsc. Soc. 



1904, pt. 4, p. 461; vgl. Brit. Journ. Photography vol. LI, 1904, 



p. 489). 

 Hitchcock, R., The ideal projecting microscope (Journ. New York Microsc. 



Soc. Annual 1902, p. 19). 

 Holm, E. , Das Pliotographieren mit Films (Photogr. Bibl. Bd. XI, 1904). 



Berlin (Gustav Sclnuidt). 64 pp. 1-20 M. 



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Mechan. Bd. XXIV, 1903, p. 3). 

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Amer. Microsc. St)c. vol. XXIV, 1902, p. 23). 



