VI, 4. Neue Literatur. 553 



b. Objectiv. 



van Heui'ck, H. , La nouvelle combinaison optique de Zi;is« et les perles de 



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

 Jobnstoii, C. , Tlic americau objectivc as compared with german (Maryland 



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

 Schroeder, H. , Lieber Farbencorrection der Achromate (Ccntralzcitg. 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 arrangenieut for the microscope (Internat. 



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

 AxDREw Ro.«s' screw and pinion coarsc- and fine-adjustment (Journ. R. Microsc. 



Soc. 1889 pt. 5 p. 691). 

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



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



d. Beleuclitiingsapparate. 



(van Heni'ck, H.), Recent improvements in electric lighting 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 

 Älicrosc. Soc. 1888 p. 76). 



Miles, J. L. AV. , 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 (Queen's Microsc. Bull. vol. VI, 



1889, p. 24). 



f. Polarisationsapparate. 



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

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



