190 Neue Literatur. XXVII, 1. 



Siedentopf, H., Über einen neuen Fortschritt in der Ultramikroskopie 

 (Verhandl. d. deutsch. Physik. Ges. Jahrg. XII, 1910, No. 1). 



Spilraann , L. , Dispositif facilitant la recherche du spirochete au moyen 

 du condensateur à fond obscur (Compt. Rend. Soc. Biol. t. LXVIII, 

 1910, p. 141—142; vgl. Bull. Inst. Pasteur vol. VIII, 1910, no. 6, p. 257). 



Thomae, C. , Zur Beleuchtungsfrage in der Ultramikroskopie (Journ. f. d. 

 prakt. Chemie, N. F., Bd. LXXX, H. 12, p. 555). 



Beck -Gordon's Speculum Lamp (Journ. R. Microsc. Soc. 1910, pt. 1, p. 92; 

 vgl. R. a. J. Beck's Special Catalogue 1909). 



Watson and Sons' Holos immersion paraboloid (Journ. R. Microsc. Soc. 

 1910, pt. 2, p. 231; vgl. Watson and Sons' Special Catalogue 1910). 



f. Zeichen apparate. 



Evatt, E. J., The cameragraph : a drawing apparatus (Journ. Anat. and 

 Physiol, vol. Ill, 1908, p. 335—336). 



Verschiedenes. 



»• 



(Barrett, W. F.,) Methods of determining the amount of light scattered 



from rough surfaces (Journ. R. Microsc. Soc. 1910, pt. 1, p. 101; vgl. 



Sci. Proc. Roy. Dublin Soc. vol. XII, 1909, p. 190—197). 

 Cords , R. , Über die Erfolge der neueren stereoskopischen Verfahren 



(Naturwiss. Wochenschr., N. F., Bd. VIII, 1909, No. 47, p. 737). 

 (Grayson, H. J.,) On the production of micrometrie and diffraction rulings 



(Journ. R. Microsc. Soc. 1910, pt. 2, p. 239; vgl. The Microscope 



vol. I, 1909, p. 4—11). 

 (,Henker, O., a. Rohr, M. v.,) Binocular loups of weak and medium 



magnification (Journ. R. Microsc. Soc. 1910, pt. 2, p. 225 ; vgl. Zeitschr. 



f Instrumentenkde. Bd. XXI A, 1909, p. 280—286). 

 Merlin , A. A. C. E. , On the measurement of the first nine groups of 



Grayson's finesh twelve -band plate (Journ. R. Microsc. Soc. 1910, 



pt. 2, p. 144). 

 Mylius, F., u. Groschuff, E., Mikrochemische Proben zur Erkennung von 



(ilasarten (Deutsche Moehan. -Zeitg. 1910, II. 5, p. 41). 

 Nelson, E. M., On the visibility of the tertiaries of Coscinodiscus asterom- 



phalus in a balsam mount (Journ. R. Microsc. Soc. 1910, pt. 2, p. 147). 

 Pocklington, H. C, The aberration of a symmetrical optical instrument 



(Proc. Roy. Soc, Ser. A, vol. LXXXllI, 1909, p. 99—106). 

 Schieder, F. V., Das Mikroskop in der Vciiks- und Bürgerschule (Monats- 

 schrift f. d. element.-naturwiss. Unterricht 1909/10, H.2, p.23, II. 5, p.G9). 



