ARRANGEMENT OP APPARATUS. 10 L 



CHAPTER VI. 



ARRANGEMENT OF APPARATUS, ETC. 



MOST methods adopted in these pages are taken 

 from the works of others, at least the principle is 

 the same although the arrangements are slightly 

 modified. Our claim is simply to have shown the 

 possibility of obtaining results with an ordinary 

 parafin lamp, equal if not superior to those hitherto 

 obtained with sunlight ; thus placing Photo-micro- 

 graphy within the power of all. 



It would be an impertience as well as an injus- 

 tice to those from whom we have learned much, 

 if mention was not made of their work in these 

 pages. No classification on the ground of superior- 

 ity has been attempted, but the processes mentioned 

 are simply in chronological order. 



All microscopists are acquainted with the beauti- 

 ful photographs of N". Rhomboides, published by 

 Mr. Woodward in the Journal of the Microscopical 

 Society. The arrangement he adopted was very 

 similar to that employed with the eighth immersion 

 when the photograph of S. Gemma was taken. He 

 seems to have always used sunlight and the wet pro- 

 cess, which as a rule give results far superior to those 

 obtained by lamplight and dry plates. 



We can therefore hardly blame those who, perhaps 



