THE CAMERA, ETC. 53 



The legs of the stand described in the previous 

 chapter are taken off, plank no. 1 from which the 

 camera is detached folded beneath 2 and 3, and 

 placed in this recess with the microscope towards 

 the dark room, all the necessary manipulations to be 

 described in future pages, are carried on by the arms 

 passed through the two sleeves situated at the side 

 of the recess. The third sleeve is fastened round 

 tube of the microscope, and the fine adjustment 

 screw, the milled head being removed, passed 

 through a small orifice in it; the rod and cork 

 before described are now put on, and all arrange- 

 ments for working, without leaving the dark room, 

 completed. 



When possible we strongly recommend this latter 

 arrangement. 



