SmllSX'^ff^ ^oyal Microscopioal Society. 143 
the lodo-Sulphates of the Cinchona Alkaloids." By a happy acci- 
dent, in the year 1851, some tincture of iodine became mixed with 
the solution of disulphate of quinine in his surgery dispensing- 
bottle. The result was the formation of a crop of crystals of the 
curious substance since aptly named " Herapathite " by Professor 
Haidinger. Struck by their peculiar appearance. Dr. Herapath 
devoted himself to their examination both chemically and optically, 
which he worked out with such masterly skill and precision, that 
his series of papers on the subject may be looked upon as models of 
chemico-physical research. These ''artificial tourmalines" would 
have been of greater practical value in the construction of polari- 
scopes, but for the difficulty in obtaining perfect films of adequate 
size. 
The claims of a large family and the calls of an exacting and 
harassing profession left Dr. Jierapath but scanty leisure to devote 
to his cherished scientific pursuits, and it was only his remarkable 
energy and perseverance, and the sacrificing needful rest, that en- 
abled him to accomplish what he has done. 
In his brief holidays by the sea-side he entered zealously on 
the study of marine organisms, especially the Echinodermata, 
papers on which, illustrated by numerous micro-photographs, he 
read at the Bath Meeting of the British Association in 1864, and 
which have since appeared in the ' Quarterly Journal of Micro- 
scopical Science.' He was also an able botanist and entomologist. 
All through the trying summer of last year, when his health was 
fast failing and his professional calls were increasingly pressing, 
he devoted much labour to the spectroscopic observation of the 
chlorophyll of various plants, the unfinished results of which have 
not yet been published. He died unexpectedly, on the 12th of 
October last, of jaundice, complicated by diabetes and disease of 
the heart, after only a week's illness, at the comparatively early 
age of forty-eight. 
In character Dr. Herapath was singularly generous and open- 
hearted, and frank and genial in manner. To his j)atients, rich or 
poor ahke, he was most kind and considerate, and he was ever ready 
to assist all in matters scientific or otherwise ; while of intellectual 
pride and assumption or professional jealousy he had no trace. 
Henry G-. Wright, M.D., F.R.M.S., &c. By the premature 
decease, in his forty-first year, of Dr. Henry Wright, of Harley 
Street, the profession in London loses one of its most accomplished 
and gifted members. Eemarkable for social brilliancy, for wit, 
literary culture, and most amiable personal qualities, he was one of 
those who in this metropoHs widen the reputation and deepen the 
liold of their profession by the possession of accomplishments which 
all can appreciate, and of the literary culture which adorns any 
profession. 
M 2 
