II, 3. Neue Literatur. 437 



Nelson's simple condenser (Journ. K Microsc. Soc. Ser. II vol. V, 1885, pt. 2 



p. 327; cfr. Engl. Mechan. vol. XLI, 1885. p. 34). 

 Stephenson's immersion illuminator (Journ. R Microsc. Soc. Ser. II vol. V, 1885, 



pt. 3 p. 523; cfr. diese Zeitschr. Bd. II, 1885, p. 366). 

 Wakd's Iris illuminator (Journ. R. Microsc. Soc. Ser. 11 vol. V, 1885, pt. 2 p. 326). 

 West's adjustable dark-ground Illuminator (1. c. pt. 3 p. 523). 



Vorce, C. M., Lantern transpareucies (Amer. Monthly Microsc. Journ . vol. VI 



1885, no. 5, p. 84). 

 Wrigbt, L., The lantern microscope (Journ. R. Microsc. Soc. Ser. II vol. V, 



1885, pt. 2 p. 196). 



Stearn, C. H., Electric lights for thc microscope (Science vol. V. 1885, p. 142). 



Stein's microscopes for use witli tbe electric ligbt (Journ. R. Microsc. Soc. 



Ser. II vol. V, 1885, pt. 2 p. 303 ; cfr. diese Zeitschr. Bd. I, 1884, p. 161). 



g. Specti'al- und PolarLsationsapparate. 



Ahrens, Über eüie neue Form polarisirender Prismen (Zeitschr. f. Instrumentenk. 



Bd. V, 1885, H. 3 p. 98; cf. Philos. Mag. vol. V, 19, p. 69). 

 Madan, H. Gr., On a modification of Foucault's and Ahrens's polarizing 



prisms (Nature vol. XXXI, 1885. p. 371; cfr. Journ. R. Microsc. Soc. Ser. 



II vol. V, 1885, pt. 2 p. 328; Zeitschr. f. Instrumentenk. Bd. V, 1885, 



H. 5 p. 168). 

 Moore, A. Y., The microspectroscope (The Microscope vol. V, 1885, no. 5 



p. 101). 



h. Mikrometer. 



Tolmaii, H. L., Eye-piece micrometcrs (Amer. Monthly Microsc. Joiu-n. vol. 



VI, 1885, no. 6 p. 115). 

 Micrometers mounted in media of high refractive index (Journ. R. Microsc. 



Soc. Ser. II vol. V, 1885, pt. 2 p. 330). 



i. Testobjeete. 



van Heurck, H., Les perles de TAmphipleura pellucida (Journ. de Microgr. 



t. IX, 1885, no, 3 p. 129). 

 Hunt, G., The Triceratium favus; to Mr. Nelson (Engl. Mechan. vol. XL, 



1885, p. 539). 

 Nelson, E. M., Triceratium (1. c. p. 560). 

 Phillips, P. A., Amphiplem-a pellucida; to Dr. Royston-Pigott (1. c. p. 560). 



