132 Neue Literatur. XVII, 1. 



d. Stativ. 



Nelson's stepped rackwork (coarse adjustment) (Journ. R. Microsc. Soc. 

 1899, pt. (3, p. G48). 



e. Verschiedenes. 



(Behrens, W.,) Neuer Projectionsapparat für wissenschaftliche Zwecke 



(Zeitschr. f. Instrumentenk. Bd. XIX, 1899, H. 11, p. 347; vgl. diese 



Zeitschr. Bd. XV, 1898, p. 7). 

 (Behrens, W.,) Notes on optical projection (Journ. R. Microsc. Soc. 1899, 



pt. ß, p. 651-, vgl diese Zeitschr. Bd. XVI, 1899, p. 183). 

 (Forgan, R.,) Method of enlarging and deepening the field of a Compound 



microscope (Journ. R. Microsc. Soc. 1899, pt. 6, p. 648; vgl. Proceed. 



R. Soc. of Edinburgh 1899). 

 Petit, L. C, Refraction versus stain in microscopy (New York med. Re- 



cord vol. LV, 1899, no. 10, p. 581). 

 Strehl, K., Theorie des Mikroskopes. Fortsetzung: Das Pleurosigmabild 



(Zeitschr. f. Instrumentenk. Bd. XIX, 1899, H. 11, p. 325). 

 Swan, Ed., Three small hand-microscopes (Journ. R. Microsc. Soc. 1899, 



pt. 6, p. 643). 



2. Mikrophotographie. 



(Gaylord, H. R.,) Complete photomicrographic apparatus (Journ. R. Mi- 

 crosc. Soc. 1899, pt. 6, p. 654; vgl. diese Zeitschr. Bd. XVI, 1899, 

 p. 289). 



Hnbbard, J. G. , Color screens as applied to photomicrography (Journ. 

 Boston Soc. med. Sei. vol. III, 1899, no. 11, p. 297). 



Roster, G. , Le applicazioni della fotographia nella scienza [Die Anwen- 

 dungen der Photographie in der Wissenschaft] (Atti 11. Congr. Fotogr. 

 Ital. Firenze 1899. — SA. 26 pp.). 



Reichert's low power photomicrographic apparatus (Journ. R. Microsc. 

 Soc. 1899, pt. 6, p. 658). 



