THE PRESIDENT'S ADDRESS. 53 



this point, and he said that he did not believe in high powers; 

 but on my asking " Why not ? " replied with a laugh, " Princi- 

 pally because T have not got any." Dr. Bousfi eld's excellent 

 little manual also appeared, and this has reached a second edition, 

 and has added much to the interest of the subject and to the 

 instruction of those working at it. About this time bacteria 

 began to come very prominently to the front, and Mr. Pringle 

 rose to the occasion and brought out a most instructive little 

 volume dealing almost exclusively with this special department of 

 photo-micrography. Personally, I really think that Mr. Pringle 

 ought to be called the pioneer of bacteriological photography. 

 Dr. van Ileurck also added to the literature available by pro- 

 ducing a large volume, which, so far as it related to actual 

 photography, dealt more especially with that of the Diatomaceae. 

 Lastly, mention must be made of a little book by Mr. Bagshaw, 

 who in a letter to myself concerning it, said it might be regarded 

 as an attempt to incite those possessed of microscopes to try to 

 use them for photography. A small work it was, it is true, but 

 nevertheless a highly commendable one, and it is a pleasure to 

 know that, growing from such small and comparatively insignifi- 

 cant results, photo-micrography has risen to be quite a little art of 

 itself, and that members have seen in this room photographs, by 

 Mr. A. E. Smith and others, which have enabled those who have 

 not directed their attention to the subject to understand how 

 numerous are its applications to all sorts and conditions of micro- 

 scopical studies and as a handmaiden to so many of the sciences. 

 One must not fail to note also that the scientific plate-manu- 

 facturers have come to the front, especially of late, to help 

 forward the " art " by greatly improving the sensitiveness of the 

 plates and by the manufacturing of contrast screens — notably, 

 perhaps, Dr. Sanger-Shepherd, Dr. Mees (of Messrs. Wratten 

 & Wainwright), Mr. Thome-Baker (of the Gem Plate Co.), 

 and others whose names I fail to recollect at the moment. Photo- 

 micrography lends itself well to a division into three sections — 



