xlvi 
genera and species,* with an essay on the scales of these animals, 
by Joseph Beck, the microscopist. The work is illustrated with 
not fewer than seventy-seven plates. I trust I may here be 
allowed to express my admiration of the zeal and skill which has 
enabled a gentleman — occupied as the author is as a London 
banker of the first rank, a member of parliament, and a profound 
archaeologist — to produce such a book as the one under notice, 
upon a group of small and obscure animals, hitherto almost 
entirel}' neglected b}' our English entomologists. 
The structure of the mouth of the Poduridte, notwithstanding 
the researches both of Sir John Lubbock and Dr. Meinert of 
Copenhagen, still requires investigation, for although the intimate 
relation of these insects with the Lepismidte (which have the 
mouth formed on the true type of the mandibulated insects, that 
is, with one pair of mandibles and one pair of maxillge) is clearly 
shown by the structure of the mandibles ; yet the Poduridse are 
described by Sir John Lubbock as possessing a second pair of 
maxillas, which would indicate an additional head-segment, and 
would, as it seems to me, remove the Poduridte from the great 
group of insects with a single pair of maxilla?, approximating 
them to those Articulata which have several pairs of under-jaws. 
Dr. Meinert's opinion, that this second pair of foot-jaws are 
maxillary palpi, obviates this great difficulty. 
The great additions to our knowledge of the Coleoptera of 
Japan, afforded by the collection made b}' Mr. Lewis, have formed 
the subjects of various communications made to our Society by 
different members who have especially studied the different 
families. 
The indefatigable veteran M. Mulsant has given us a new and 
enlarged edition, in the form of a thick 8vo volume, of his work 
upon the Lamellicorn beetles of France. 
Mr. Frederick Bates has published various memoirs on new 
genera and species of Heteromerous beetles ; whilst his brother, 
Mr. H. W. Bates, has continued his memoirs on various species 
of Longicorn beetles. 
Dr. Mohnike has given us a revision of the Cetoniidse of the 
Philippine Islands in ' Wiegmann's Archives' for the past year. 
* I notice that the rodnra liyperborea of Bohemaun is twice iusertoil ns a Podura 
and an Achorutcs : also that Savigny's admirable figures in the great work on Egypt, 
and Nicolet's iu Gay's work on Cbili, have been overlooked by Sir J. Lubbock. 
