10 ELEMENTARY PHOTO-MICROGRAPHY. 



times. It is only when the tyro attempts to obtain 

 these results himself that he realises the difficulties. 



Now the possessor of a microscope has three 

 ways of showing the special objects of his study to 

 his friends. Firstly, he may exhibit the mounted 

 specimens in the ordinary way, when every indi- 

 vidual must of necessity look down the tube of the 

 microscope ; or, secondly, he may attach the micro- 

 scope to a lantern and throw the enlargement upon 

 a screen visible to all ; or, thirdly, he may photo- 

 graph the objects through the microscope, and thus 

 obtain a permanent and ever available record. 



It is only with the last of these methods that we 

 have to deal at present, and it is taken for granted 

 that the reader is already familiar with the use of 

 the microscope, since it is much easier to instruct 

 the microscopist in the mysteries of photography 

 than it is to teach the amateur photographer the 

 uses of the microscope. If the reader, then, is not 

 conversant with the microscope he is recommended 

 to study some good textbook on the subject before 

 attempting to photograph through an instrument he 

 does not understand. 



But there are many microscopists who are also 

 photographers, although they may never have tried 

 the special branch of photo-micrography. To> such 

 there is a fund of pleasure in store. As a fascinating 

 pursuit it has no equal. Independent of weather, 

 scenery, and sunshine, the photographer may be 

 seated at a comfortable fireside by gaslight and pro- 

 duce pictures both marvellous and beautiful. Every 



