586 Neue Literatur. TI, 4. 



e. Mikrometer. 



(Behrens, W.), The ocular micrometer (Microsc. Bull. vol. II, 1885, p. 20, 

 from Beüuenp, W. J., The microscope in botany). 



(Belu-ens, W.), Winkei/s Älikrometerocular mit vertical beweglichem Mikro- 

 meter (Centralz. f. Opt. u. Mechan. Bd. VI, 1885, No. 16 p. 183, Abdruck 

 aus dieser Zcitschr. Bd. II, 1885, p. 41 ; cfr. auch Zeitschr. f. Instrumentenk. 

 Bd. V, 1885, H. 9 p. 326). 



(Toliiian, H. L.), Eyc-piece micrometers (Journ. R. Microsc. Soc. Ser. II vol. 

 V, 1885, pt. 4 p. 704; cfr. Amer. Monthly Microsc. Journ. vol. VT, 1885, 

 p. 115). 



f. Si)ectral- iind Polarisationsapparate. 



Holmes, E. A., Polarized light as applied to the microscope. Read betöre 



the Hackney Microsc. Soc, 8 pp. 

 M'Connel, J. C, Notes on the use of Nicoi.'s prism (Proceed. Phys. Soc. 



London vol. VII, 1885, p. 22). 

 Moore, A. Y., The microspectroscopc (The Microscope vol. V, 1885, p. 101). 

 Boeckek's holder for analysing prism and goniometer (Journ. R. Microsc. Soc. 



Ser. II vol. V, 1885, pt. 4 p. 705). 



g. Varia. 



Beckwitli, E. F., Resolution of Amphipleura (The Microscope vol. V, 1885, 



p. 131). 

 Beeching, S., Amateur lens-grinding (Engl. Mechan. vol. XLI, 1885, p. 498). 

 Eternod, A,, Des illusious d'optique dans les observations au microscope. 



Geneve, 1885, 8 pp. 8«. S. A. 

 (Govi), Discovery of pseudoscopy (Journ. R. Microsc. Soc. Ser. II vol. V, 1885, 



pt. 4 p. 722; cfr Atti della R. Accad. dei Lincei. Transunti t. VII, 1883, 



p. 183). 

 Grant, F., Microscopical (Engl. Mechan, vol. XLII, 1885, p. 57). 

 IMalcolm, On binocular giasses adjustable to eyes having unequal focal Icngths 



(Proceed. Phys. Soc. London vol. VII, 1885, p. 80). 

 (Nelson, E. 31.), Keeping both eyes open in Observation (Joimi. R. Microsc. 



Soc. Ser. II vol. V, 1885, pt. 5 p. 881 ; cfr. Engl. Mechan. vol. XLI, 1885, 



p, 523). 

 (Smith, H. L.), Device for testing refractive index (Amer. Monthly Microsc- 



Journ. vol. VI, 1885, no. 10 p. 181). 

 Aperture puzzle (Journ. R. Microsc. Soc. Ser. II vol. V, 1885, pt. 4 p. 721). 

 Aperture puzzles (1. c. pt. 5 p. 882). 

 Laukekt's apparatus for registering the curvation and refraction of Icnses (1. c. 



p. 862; cfr. Comptes rend. de Paris t. C, 1885, p. 903). 



