7S 



To the landscape photographer as well as to the botanist 

 their employment is indicated as a means for a better 

 interpretation of the green colours of the foliage, etc. To 

 the entomologist I would say, take a specimen of Pyrameis 

 atalanta and photograph it first with an ordinary and then 

 with an isochromatic plate. The result should be con- 

 vincing. 



The subject of colour photography is one that is attracting 

 so much attention just now that I may be pardoned for 

 briefly referring to the question. From time to time one 

 sees reports in the lay papers of the alleged discovery of 

 colour photography ; needless to say, these are more or less 

 premature, although one cannot deny that several important 

 steps have been taken in this direction during the past few 

 years, and a vast amount of research work is still being con- 

 ducted by some of our best authorities on these matters. 

 Some excellent results have been achieved by Mr. Ives and 

 exhibited in his " Kromscope," and, as transparencies, 

 probably leave little to be desired. But when photographic 

 reproductions in colour on paper or other opaque material 

 are anticipated it is quite another question. The results of 

 Mr. Sanger Shepherd's experiments, recently demonstrated 

 at the Camera Club, are interesting from a scientific point 

 of view, but it is doubtful whether they can be regarded as 

 being very much in advance of the achievements of his 

 contemporaries. The naturalist, in common with workers 

 in other branches of science, would, of course, welcome any 

 discovery in this direction. 



I do not propose, in the short time at my disposal, to give 

 even a general outline as to the importance of the micro- 

 scope itself in the study of biology ; I will rather confine my 

 remarks to demonstrating its utility to the naturalist, and 

 more particularly to the specialist, when combined with 

 photography, as a means of obtaining an accurate record of 

 their microscopical investigations, — not only so, but also as 

 an important aid in illustrating works on natural history 

 subjects. Discussion has arisen on various occasions as to 

 the relative merits of photomicrography and diagrammatic 

 or drawn representations of natural history subjects. 

 Whilst I will not attempt to deny that the former has 

 its limitations, any prejudice shown has been probably 

 either the result of ignorance as to the possibilities obtain- 

 able by modern methods, or from attempting to photo- 

 graph all but impossible subjects. Unskilfully prepared 

 objects have much to answer for in this respect. It is a 



