714 



SUMMAKY OF CURRENT RESEARCHES RELATING TO 



MICROSCOPY. 



A. Instruments. Accessories, &c* 

 (!) Stands. 



New Exhibition Microscope.j — Figs. 185 and 186 show an arrange- 

 ment of Microscope permanently set up in the systematic museum of the 

 New York Botanical Gardens. The stand adopted is the Leitz V, the 

 foot being removed and the upright support fastened to a base of hard- 

 wood 6 by 5 by 1 in., blackened and with bevelled edges. The mirror 



• 



Fig. 185. 



swings in two axes, and the square stage is furnished with a wheel 

 diaphragm. The whole stand is enclosed in a case made of sheets 

 of plate-glass cemented at the joints, the outside measurements being 

 4f by 4| by 6 in. The top of the case is not cemented, but is held in 



* This subdivision contains (1) Stands; (2) Eye-pieces and Objectives; (3) Illu- 

 minating and other Apparatus ; (4) Photomicrography ; (5) Microscopical Optics 

 and Manipulation ; (6) Miscellaneous. 



t Journ. New York Bot. Garden, i. (1900) pp. 139-41 (2 figs.). 



