xl 
The accounts wliich have from thne to time been published of 
the progress of the exploring vessel 'Challenger' have made us 
acquainted with the great success which has so far attended 
the expedition. Several interesting articles have appeared in 
' Nature,' giving a detailed account of its proceedings, in which 
we find accounts of some very remarkable Crustacea, one of 
which, taken at a very great depth, exhibits a considerable 
resemblance to the fossil genus Eryon. Another very curious 
form, being the largest Amphipod hitherto discovered, has fur- 
nished the subject of a memoir transmitted to the Royal Society. 
I may, however, remark that this animal was long ago described 
and figurect by Guerin-Meneville, under the name of Cystosoma, 
and that the type specimen was obtained by me from its describer, 
and is preserved in the Hopeian Collection at Oxford. 
Mr. Charles V. Eiley, the State Entomologist of Missouri, has 
issued his ' Fifth Annual Report on the Noxious, Beneficial and 
other Insects' of that State (Jefferson City, 1873, pp. 1 — 130). 
I have not yet seen this volume, but it contains an article on 
stinging larvae, of which Mr. Riley is acquainted with fifteen 
distinct American species possessing urticating powers, which in 
every instance are exerted mechanically, and not produced from 
actual poison. Another chapter contains a series of instructions 
to young entomologists on the modes of collecting and x^reserving 
insects. 
The agency of insects in the impregnation of flowers is a sub- 
ject of growing interest. A series of papers on this subject has 
recently appeared in the pages of ' Nature.' 
Mr. Riley has also, during the past year, made us acquainted 
with the interesting circumstances attending the impregnation of 
the flowers of the genus Yucca by a small moth of a very 
remarkable structure, expressly fitted for the purpose, and without 
the aid of wliich the plant could not have been perpetuated. 
The subject of the injurious attacks of the Phylloxera upon 
vines continues to attract the attention of many observers in 
France, and has been repeatedly brought under the notice of .the 
French Academie des Sciences as well as the Entomological 
Society of France during the past year. 
A memoir by S. E. Peal, Esq., published during the last year 
at Calcutta (reprinted from the 'Journal of the Agricultural and 
Horticultural Society of India,' vol. iv.), with seven plates, has 
