ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
805 
MICROSCOPY. 
a. Instruments, Accessories, &c.* 
Cl) Stands. 
A Universal Stand. Dr. A. G. Field describes this stand thus : — 
“ Fig. 8 1 below represents a stand adapted to the wants of the pro- 
fessional or amateur who uses the Microscope and camera. It consists 
of base A, 14 X 14 X 15 in., to which are secured by dovetail, glue, 
and screws, two uprights, B B, 5x1 in., one 3 and the other 
7 ft. in height. These are precisely perpen- 
Fig. 81. dicular to base, to bring instruments and objects 
in line when centered. They are grooved on 
edges to receive tongues or arms, C C C C, of 
the secondary base D, and also on the camera- 
carrier H. The uprights are made firmer by 
additional pieces extending up 30 in. from the 
base. The secondary base, 14 X 14 in- 5 is 
corner-braced as shown, and is adjustable as to 
height, being secured in desired position by set- 
Fig. 82. 
screw E. In the centre is a hole, 1^ in. in diameter, which receives 
the tube of the Microscope when it is placed on the base for high 
amplification in photomicrography, and also the gudgeon of the support 
of the base-board O, when used in copying or photography. G is a 
* 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. 
f Amer. Mon. Micr. Journ , xii. (1891) pp. 151-2. 
