6 



"On Making Permanent Microscopical Specimens of Blood." 

 By Feederick C. Lahkin, M.R.C.S. 



" Wing Scales of Butterflies." By Willoughby Gardner. 



"Some New and Rare Species of Copepoda, recently found in 

 Liverpool Bay." By Isaac C. Thompson, F.L.S., F.R.M.S. 



" Types of the Anoplura compared with Menopon Cucullare." 

 By James Hoenell. 



"Notes on the Desmids." By J. Harbord Lewis, F.L.S. 



"Some Remarks on the Diseases associated with the Parasite 

 Bilharzia haematobia." By Alexander Barron, M.B., 

 M.R.C.S. 



Abstract of Papers read and Communications made during the 

 year 1888:— 



January SOth.—HLx. A. Noeman Tate, F.I.C., F.C.S., F.R.M.S., President 

 elect, delivered an inaugural address on "The Application of the Microscope 

 to Technological Purposes," in the course of which he said: The microscope 

 is no longer what it was a comparatively short time since, an instiiiment 

 employed more especially for recreative purposes, for a few researches in 

 natural history, and an occasional test by medical men and chemists. It 

 has of late years proved itself not only valuable in scientific research, but 

 also of great service in very many of the practical ajiplications of science. 

 It has afforded to the physician and surgeon information of tlie greatest 

 value, and during the last few years it has been especially serviceable in the 

 study of micro-organisms in connection with health and disease, and in the 

 examination of the minute structure of the tissues of the body. The work 

 done by its aid in relation to bacteriology has been immense, and the results 

 are being rapidly systematised and put to useful purposes ; but, gi-eat as has 

 been the ^jrogress of bacteriology, there is still a very wide field for further 

 work, and room for very many new workers. 



Its study has akeady been made useful in examinations of the au- for 

 micro-organisms, but the work yet done in this direction is a mere trifle 

 compared to the importance of the investigation in relation to health. 

 Although a subject that can well be worked at with advantage by individual 

 microscopists, it is highly desirable that it should be taken up by Govern- 

 ment departments and sanitary authorities. 



