VI, 4. Neue Literatur. 553 



b. Objectiv. 



van Heurck, H. , La nouvelle combinaison optiquc de Zm^s et les perles de 



l'Amphipleura (Bull. Soc. Beige de Microsc. t. XV, 1889, no. 11 p. 69). 

 Jühntjton, C. , The american objective as compared with german (Maryland 



med. Journ. vol. XXI, 1889, p. 130). 

 Schroeder, H. , lieber Farbencorrection der Achromate (Centralzeitg. f. Opt. 



u. Mechan. Bd. X, 1889, No. 19 p. 217). 

 Wenham, F. H., Largo apertures in microscopy (Engl. Mechan. vol. XLIX, 



1889, p. 438). 



c. Stativ. 



Anderson, R. J., A panoramic arrangemeut for the microscope (Internat. 



Monatsschr. f. Anat. u. Physiol. Bd. VI, 1889, II. 8 p. 289). 

 Andrew Boss' screw and piniou coarse- and fine-adjustment (Journ. R. Microsc. 



Soc. 1889 pt. 5 p. 691). 

 M'Istosh's microscope attachment (Journ. R. Microsc. Soc. 1889 pt. 5 p. 692; 



cfr. Proceed. Amer. Soc. Microscopists vol. X, 1888, p. 155). 



tl, Beleuchtungsapjjarate. 



(van Henrck, H.), Recent improvements in electric Ughtiug applied to micro- 

 graphy and photomicrography (Journ. R. Microsc. Soc. 1889 pt. 5 p. 696; 

 cfr. Bull. Soc. Beige de Microsc. t. XV, 1889, p. 24 ; diese Zeitschr. Bd. VI, 

 1889, p. 491). 



Leach, W., A substage condenser for the microscope (Transact. Manchester 

 JVIicrosc. Soc. 1888 p. 76). 



Miles, J. L. W. , Sub-stage illumination by simple devices (Transact. Man- 

 chester Microsc. Soc. 1888 p. 78). 



e. Mikrometer. 



Neudorf, F. J., Charles Fasoldt sr.'s rulings (The Microscope vol. IX, 1889, 



p. 157). 

 Ward, R. H., Micrometry by the camera lucida (Qieen's Microsc. Bull. vol. VI, 



1889, p. 24). 



f. Polarisationsapparate. 



Thomson, S. P., Note on polarizing apparatus for the microscope (Journ. R. 

 Microsc. Soc. 1889 pt. 5 p. 617). 



