UNIVERSAL CAMERAS 



17 



made the} 7 are very liable to tremors transmitted from 

 any vibration of the table. The arms that carry the 

 camera must be very rigidly connected to the pillar, 



Fig. 6 



BAUSCH AND LOMP.'.S VERTICAL AND HORIZONTAL CAMERA 



or after wear the back of the camera ma}^ fall away from 

 its perfectly horizontal position. Cameras carried between 

 two vertical columns are better in this respect. 



Universal Cameras. It is a natural transition from the 

 last two arrangements to an apparatus that may be 



