a veal new edition, and .£20 for an ordinary revision.” A French 
iraiLslation, by j\F. Kiiinbert, was inintod in 1870. 
J!y the ])uljlication of his ‘Manual,' my father became a recognized 
autliority in all matters relating to the Mollusca, or to tlie sciciico of 
]\[alacology. Conchology he treated as “a craft rather than a science,” 
calling it “tlie art of collecting, naming, and arranging shells;” 
and “ a capital amusement for young people, and ladies, and for 
gentlemen who have some leisure and .spare means, and whose 
tastes are not sanguinary.” It is true that collections of shells, 
selected as types of l)cauty of colour and form, are not undeserving 
ol commendation, for in most respects they may be quite as 
instructive as a series of les.s-favoured specimens ; but those whoso 
ambition it is to make advances in the knowledge of the Mollusca, 
cannot bo content with the outward form, and “ treat the shell-lish 
themselves as mere abominations, unfit for the contemplation of 
those who daintily arrange their ‘ cones ’ and ‘ cowries ’ in dmwers 
of rosewood and cedar.” * 
To the study of the iMollusca my father brought a knowledge, 
not only of the fossil as well as recent forms, but he was intimately 
acquainted Avith their anatomical details and microscopic structure, 
llio dredge and the hammer, tlie aquarium and the microscope, all 
lent their aid to his re.scarchos. llis summer holidays, in 1853, 
were spent in sea-side studies of the IMollusca at Folkestone (the 
results of several dissections were published in the ‘Annals and 
^Magazine of ^Natural History’), Avhile his familiarity Avith the 
invertebrata generally, enabled him the better to elucidate several 
obscure forms Avhich had puzzled those Ahaturalists Avho had 
previously attempted to interpret them. 
Perhaps his most important special contribution to science Avas 
his paper on the structure and affinities of the Hippuritidee, read 
before the Geological Society of London in 1851. These remark- 
able fossils, ranged under the order Eudistes by Lamarck, had been 
variously grouped as Cephalopods, Corals, Annelides, Balani, 
Liachiopods, and Laniellibranchs. To the last-named diA’ision they 
indeed belong ; but those Avho had so regtarded them had not agreed 
as to their family-relationship. Their 2 iosition betAveen the 
Chamaceie and Corduxdtr, Avhere they Avere jilaced by (^Hienstedt, 
• Ili.s own collection of the genera of IMollnsca was, after his death, 
piirchasctl for the Anatomical .Museum in the rniversity of Cambridire. 
