SIMPLE PHOTO-MICROGRAPHY 83 



photographic records of objects is already acquainted 

 with ordinary photographic procedure. If he has 

 no experience in photography, he had better 

 acquire some before tackhng the process in con- 

 nection with the microscope. Supposing that we 

 possess a bellows camera, and know how to expose 

 and develop a plate, how are we to apply the camera 

 to the microscope ? All that we need to do is to 

 place microscope with object, camera (without 

 lens), and source of light in line ; focus and make 

 an exposure. The essential requirements are thus 

 stated in a few words, but in practice we have to 

 pay much attention to detail if results are to be 

 satisfactory. 



The body of the microscope, in the method I 

 describe, must be inclined horizontally, the lens of 

 the camera must be removed, and the eye-piece end 

 of the microscope tube is to be connected with the 

 camera aperture. This connection needs to be 

 perfectly light-tight, a condition which can be 

 secured by means of a black velvet collar attached 

 to the camera flange, and having elastic in a hem 

 which will grip the microscope tube. Provision 

 needs to be made so that camera and microscope 

 are held steadily in line, and for this purpose a sohd 

 base-board about 5 feet long by 8 or 10 inches wide, 

 fitted with strips of wood to hold the apparatus in 

 position, will suffice. The ingenious worker wiU not 

 need a detailed description of a base-board and its 

 fittings ; he will devise such arrangements as are 

 required for the apparatus he possesses. The lamp 

 must have a place on the baseboard, and be placed 

 in line with the objective and the centre of the 



