MICROSCOPE AND CAMERA ALLIED 



to ask. Unless the vibration is continuous, and that 

 is unlikely, it is less likely to cause trouble during 

 a very long exposure than during a short one, 

 because it operates during a small proportion of 

 the whole time. 



All kinds of objects can be depicted with the 

 apparatus we have described. Minute shells and 

 insects; parts of larger insects, their legs and wings 

 for example; the feathers of birds; various rocks, 

 crystals of all kinds ; small flowers and their seeds ; 

 mosses, lichens and many kinds of fungus, in fact 

 their number is limited only by the degree of in- 

 genuity possessed by the photographer. Do not 

 suppose that these low-power photo-micrographs 

 are interesting only because of their size, the en- 

 thusiast who makes a collection will discover in his 

 prints hidden beauty of which he had no concep- 

 tion when he looked at the originals. We have 

 seen a very large number of low-power photo-micro- 

 graphs, taken with very inexpensive apparatus, 

 showing the wonderful sculpturing on the wing 

 cases of beetles, some of them are marvels of design, 

 yet, observed with the naked eye, many of the in- 

 sects appear to be devoid of ornamentation. 



The production of high-power photo-micrographs 

 is hardly a subject that can be described in these 

 pages; the apparatus is costly for, even if one dis- 

 penses with a specially designed micro-photographic 

 camera, it is necessary to have a good microscope 

 and bellows camera, for really advanced work. 

 Messrs Swift & Sons supply an excellent fitting, with 



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