XXIII, 3. Neue Literatur. 381 



Zeiss' Stand i'ov crystallographic and petro^raphic work (Journ. R. Microsc. 

 Soc. 190G, pt. 4, p. 489 ; vgl. Zeiss' Katalog- f. Mikroskope u. raikrosk. 

 Hilfsapparate. 33. Ausg., 190G, p. 50). 



b. Objekttisch. 



Zwintz, J, , u. Thien, O., Über einen neuen elektrisch-heizbaren Objekt- 

 tisch für Mikroskope (Zentralbl. f. Bakteriol. Abt. 1 , Orig. Bd. XLII, 

 1906, H. 2, p. 179; vgl. diese Zeitschr. Bd. XXIII, 1906, p. 332). 



Zeiss' large mechanical stage (Journ. R. Microsc. Soc. 1906, pt. 4, p. ^89 ; 

 vgl. Zeiss' Katalog f. Mikroskope u. raikrosk. Hilfsapparate. 33. Ausg., 

 1906, p. 36). 



c. Okulare. 



R. a. J. Beck's new Form of Ehrlich Eye-piece for counting blood- 

 corpuscles (Journ. R. Microsc. Soc. 1906, pt. 3, p. 362). 



Zeiss' compensating Ocular 4* with Iris Diaphragm (Journ. R. Microsc. 

 Soc. 1906, pt. 4, p. 491). 



d. Beleuchtungsapi)arate. 



(Fabry, C. , a. Buisson, H.,) Use of the cooper hewitt lamp as a source 



of monochroinatic light (Journ. R. Microsc. Soc. 1906, pt. 3, p. 315; 



vgl. Corapt. Rend Acad. Sc. Paris t CXLIII, 1906, p. 784). 

 Zeiss' centring cbromatic Condenser (Journ. R. Microsc. Soc. 1906, pt. 4, 



p. 492; vgl. Zeiss' Katalog f. Mikroskope u. raikrosk. Hilfsapparate. 



33. Ausg., 1906, p. 31). 



e. Verschiedenes. 



(Barrett, W. F.,) Entoptic vision and the Entoptiscope (Journ. R. Microsc. 

 Soc. 1906, pt. 4, p. 495; vgl. Scient. Proc. R. Dublin Soc. vol. XI, 

 1906, no. 7— 8j. 



