64 - 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
MICROSCOPY. 
a . Instruments, Accessories, &c.* 
G) Stands. 
Johnson & Sons’ Advanced Student’s Microscope. — At the meeting 
of the Society in June last.i Mr. T. T. Johnson, of the firm of W. Johnson 
* This subdivision contains (1) Stands; (2) Eye-pieces and Objectives; (3) Illu- 
minating and other Apparatus : (4j> Photomicrography ; (5) Microscopical Optics 
and Manipulation ; (6) Miscellaneous. f This Journal, ante, p. 556. 
