CAMERA LUCIDA. 



235 



table as possible, and the object and camera having been pro- 

 perly adjusted, a pencil fastened into a long piece of light 

 hollow cane must then be provided, and the artist, either stand- 

 ing or sitting, and looking down through the camera, will see 

 the image on the paper, and after a little practice will be able 

 to trace its outline as easily as when the paper was placed on 

 the table only a few inches below it. Another way of effecting 

 the same end is shown in fig. 153, which is that of placing the 

 tracing, M N, made from the miscroscope by the camera as an 

 object for another camera, c, of the kind employed by artists 



Fig. 153. 



