458 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



MICROSCOPY. 



A. Instruments, Accessories, &c* 



(1) Stands. 



Queen Microscope for Physical Laboratory Metal Examinations — 



This instrument is made entirely of brass, highly finished. The coarse 



no. [)5. 



* 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. 



