1897] SOME NEW BOOKS 349 
Prof. Jeffrey Parker’s “Elementary Biology,’ in its new form, 
differs from the preceding editions in the increased attention devoted 
to the higher animals and plants, The general chapter on the higher 
animals has been expanded into four beautifully-illustrated chapters, 
dealing respectively with an outline - classification, the starfish, the 
crayfish, the fresh-water mussel, and the dogfish. The additional 
botanical matter refers in the same style to Hquisetum, Salvinia, 
Selaginella, the Gymnosperms, and the Angiosperms. These supple- 
mentary sections will indeed, as the author himself remarks, contri- 
bute much to the usefulness of the book. 
Prof. Newton Parker’s second English edition of “ Wiedersheim ” 
may almost be described as a new book. The original descriptions 
and arrangement are retained as far as possible, and most of the old 
figures are reproduced, although a few have been replaced and others 
added. Prof. Wiedersheim has also revised the whole. But to bring 
the work up to date, and at the same time not increase the size of the 
volume, it has been necessary to abridge much of it and recast other 
portions; while the useful bibliography in the appendix has been 
considerably expanded to increase its usefulness to advanced students. 
We only notice one serious blemish, namely, the unreliable character 
of some of the references to the skeleton in extinct animals. The 
figures of the pelvic arch of Plesiosawrus on p. 115 are quite errone- 
ous, and might easily have been replaced. “ Labyrinthodon rueti- 
meyert” is certainly not a labyrinthodont. The wing-finger in the 
Pterodactyles is not the fourth but the fifth digit. Before the next 
edition we would suggest that this section of the work be submitted 
to someone skilled in vertebrate palaeontology for revision. 
SCRAPS FROM SERIALS 
Mr ApRIEN DOLLFUS has paid considerable attention to the terrestrial 
Isopoda, the wood-lice of the world, and has published a paper in the 
October number of La Feuille des Jeunes Naturalistes showing the wide 
range of some of these little animals. Considering the mode of life of 
these Isopoda, it is not at all surprising to find certain species have a 
wide distribution, but it is interesting to have this distribution put on 
record. !The species dealt with are Armadillo murinus, Brandt ; 
Armadillidium vulgare, Latr. ; Porcellio scaber, Latr.; P. laevis, Latr. ; 
Metoponorthus pruinosus, Brandt ; Ligia exotica, Roux. Of these five 
the Metoponorthus has the widest range, being recorded for America 
(N. to §.), Azores, etc., the whole of Europe, Africa (N. to 8.), Asia 
(E. to W.), and Australia (N. Caledonia and Marianna Islands) ; Por- 
cellio laevis is the next most widely distributed, having much the same 
range as the Metoponorthus, but found also in the Bermudas, Mel- 
bourne, and various islands of Oceania, and restricted to the N. of 
Africa. A sketch map accompanies the paper, which has an additional 
value in that it mentions the collections in which the particular . 
specimens recorded are to be found. 
The American Journal of Psychology, vol. viii. No. 3, contains a 
‘Study of Apperception, based on experimental work on the reading 
of words by Dr Pillsbury. Typewritten words photographed on lantern 
slides were projected on a ground-glass screen, and exposed for two- 
