10 
WEDNESDAY, NOVEMBER 14th. 
PHOTO-MICROGRAPHY 
(With Illustrations by Electric Lantern), 
BY 
MR, T. CHARTERS-WHITE, M.R.C.S., L.D.S., &c. 
As the value and interest of this paper centred so much in 
the admirable diagrams and slides shown by Mr. Charters- 
White, it is impossible to do justice to his address without a 
reproduction of theillustrations. Members will find the substance 
of it in the new edition of his well-known work, “ A Manual of 
Elementary Microscopical Manipulation for the use of Amateurs.” 
WEDNESDAY, DECEMBER 141g, 1892. 
THE EVOLUTION OF THE BIRD, 
BY 
MR. HM. WALLETS: 
The lecturer began by assuming that the bulk of his 
audience were more or less Darwinians, and stating that he should 
treat his subject from the point of view of the evolutionist, not 
that Darwin had proved his thesis—the great theory was a 
theory still—but since the accumulated observations of the thirty 
odd years which had elapsed since the “ Origin”? was published 
had immensely strengthened its positions, we might perhaps 
accept evolution as a working hypothesis, as a master-key which 
undoubtedly unlocked scientific difficulties, otherwise insoluble. 
ae 
