CH. X] 



ERECT IMAGES IN DRAWINGS 



FIG. 204. EDINGER'S OUTFIT FOR DRAWING WITH AN ORDINARY MICRO- 

 SCOPE AND SMALL ARC LAMP ON THE HOUSE LIGHTING SYSTEM. 



(Cut loaned by Ernst Leitz). 



This is the first form of the drawing outfits using the ordinary microscope 

 and the small arc lamp on the house lighting circuit. It was demonstrated at 

 the meeting of the Anatomische Gesellschaft at its Leipzig meeting, April, 191 1. 



The microscope is inclined to 45 and the mirror at an angle of 22.5, thus 

 directing the light vertically down upon the horizontal drawing surface. 



For drawing in a light room a cloth tent is provided and is supported above 

 and on the sides by metal arches. If it is very light one can pull the cloth fever 

 the head as in focusing a camera. In the evening or in a dark room the cloth 

 can be opened widely to expose the drawing surface. 



or traced in this position and the drawing turned right side up, 

 when it will appear like fig. 211, that is, correct in every way. 



514. Erect images with the opaque lantern or episcope. 



(A) The objective horizontal, the object and the drawing surface 



