136 Neue Literatur. XXIX, 1. 



(Zakrzewski, C. ,) Half-shadow interferometer as photometer (Journ. R. 



Microsc. Soc. 1912, pt. 2, p. 236; vgl. Bull. Int. Acad. Sc, Cracovie, 



Cl. sc. math. vol. VIII, 1911, p. 545). 

 Krüss' universal arc lamp with steady light-source (Journ. R. Microsc. 



Soc. 1912, pt. 2, p. 236; vgl. Zeitschr. f. phys. u. chemischen Unterr. 



Bd. XXIV, 1911, p. 283; Deutsche Mechan.-Zeitg. Bd. XXIII, 1911, 



p. 241). 

 Petrol-vapour incandescent gas larap (Journ. R. Microsc. Soc. 1912, pt. 1, 



p. 100; vgl. Watson's Specialcatalogue 1912). 

 Watson and Sons' resolving microscope tray (Journ. R. Microsc. Soc. 



1912, pt. 1, p. 107). 



c. Mikrometer. 



Gordon, J. W., Vernier luicrometer (Journ. R. Microsc. Soc. 1912, pt. 2, 

 p. 245). 



d. Verschiedenes. 



Föppl, A., Die Sprödigkeit von Glas (Aus: „Sitzungsber. d. bayer. Akad. 



d. Wiss.", p. 505—522). S". München (G.Franz) 1911. — -40 M. 



Leishman , AV. B. , The correction of refraction for microscope work 



(British med. Journ. 1912, no. 2GG4, p. 123 w. 1 flg.). 

 (Nelson, E. M. ,) Improved water microscope (Journ. R. Microsc. Soc. 



1912, pt. 1, p. 95; vgl. English Mechanic vol. XCIV, 1911, p. 348). 

 (Nelson, E. M.,) Improved Compound microscope by James Mann (Journ. 



R. Microsc. Soc. 1912, pt. 2, p. 229; vgl. Journ. Quekett micr. Club, 



ser. 2, vol. XI, 1911, p. 317). 

 Microscope Stands [English a. Continental] (Journ. R. Microsc. Soc. 1912, 



pt. 1, p. 97, pt. 2, p. 231). 



3. Mikrophotogi-aphie und Projektion. 



Barnard, J, E., A geometric slide photomicrographic apparatus (Journ. 



R. Microsc. Soc. 1912, pt. 1, p. 1). 

 Braus, H., Mikro-Kino-Projektionen von in vitro gezüchteten Organanlagen 



(Wiener med. Wochenschr. Jahrg. LXI, 1911, No. 44, p. 2809—2812). 



