530 Neue Literatur. XV, 4. 



Smith, A. H., Drawing- microscopical Images (Miciosc. Bull. vol. XY, 1898, 

 no. 5, p. 36). 



e. Verschiedenes. 



Stevens, J. S., A study of various styles of cross-wires (Journ. applied 



Microsc. vol. I, 1898, no. 10, p. 179). 

 Strehl, K. , Theorie des Mikroskopes auf Grund der Formeln für die 



Theorie des Fernrohres (Zeitschr. f. Instrumentenk. Bd. XVIII, 1898, 



H. 10, p. 301). 

 Clinical value of the microscope (Microsc. Bull. vul. XV, 1898, no. 5, p. 34). 

 Two old microscopes exhibited by the President at the last meeting (Journ. 



R. Microsc. Soc. 1898, pt. 4, p. 473). 



3. Mikrophotographie. 



Jourdain. P. E. B. , On a method of adjusting the sizes of the coloured 



Images yielded by the Cooke lens (Journ. R. Microsc. Soc. 1898, pt. 4, 



p. 397). 

 Jourdain, P. E. B. , Remarks on the construction of the planar lens and 



its use in low-power photomicrography (Journ. R. Microsc. Soc. 1898, 



pt. 4, p. 399). 

 Schürmayer, B. , Zur mikrophotographischen Technik (Verhandl. d. Ge- 



sellsch. Deutscher Naturf. u. Aerzte, Braunschweig 1897, Th. II, H. 1, 



p. 144). 



4. Präparationsmethoden im allgemeinen. 



a. Apparate zum Präi)ariren. 



Buscalioni, L., II nuovo microtomo Buscalioxi-Becker [Das neue Mikro- 

 tom Buscalioni-Becker] (Malpighia vol. XII, 1898; — SA. 20 pp. 8**). 

 Gumlich, E., Ueber einen Thermoregulator für ein weites Temperatur- 



. gebiet (Zeitschr. f. Instrumentenk. Bd. XVIII, 1898, H. 10, p. 317). 

 (Jeffers, H. W. ,) Circular colonometers (Journ. R. Microsc. Soc. 1898, 

 pt. 4, p. 481; vgl. Journ. apphed Microsc. vol. I, 1898, p. 53). 



