1891.] 



MICKOSCOFICAL JOURNAL. 



151 



A Universal Stand. 



By a. G. field, M. D. 



DES MOINES, IOWA. 



Fig. I below represents a stand adapted to the wants of the profes- 

 sional or amateur who uses the microscope and camera. It consists of 

 base A, 14X 14 x 5 inches, to which is secured, by dovetail, glue, and 

 screws, two uprights, B, B, ^ x i inches, one three and the other seven 

 feet in height. These are precisely perpendicular to base, to bring in- 

 struments and object in line when centered. They are grooved on 

 edges to receive tongues or arms C, C, C, C, of the secondary base />, 

 and also on the camera carrier //. The uprights are made firmer by 

 aiUlitional pieces extentling up thirty inches from the base. The sec- 

 ondary base, 14 X 14 inches, is corner-braced as shown, and is adjust- 

 able as to height, being secured in desired position bv set screw 7i. 



Fir 



In the centre is a hole, one and a half inches in diameter, which receives 

 the tube of the microscope when it is placed on the base for high am- 

 plification in photo-micrography, and also the gudgeon of the support 

 of the base-board O when used in copying or photography. G is a 



