op aA TE a 
54 REVIEWS AND BOOK NOTICES. 
confine himself to the study of Rocky Mountain forms, but 
includes the Acridians of the whole of North America. It is pre- ' 
ceded by an introductory statement of the external and internal 
structure of insects of this group, with especial reference to parts — 
used in description ; by an exposition of the author’s idea of clas- 
sification and by notes on the geographical distribution of the 
genera and species. In the body of the work one hundred and 
twenty species and twenty-five genera of U. S. Acridians are 
described ; forty species and four genera as new. In the second 
part, the extra-limital species are described, but no new species are 
mentioned; and nearly all the descriptions, as well as many of 
those in the first part, are borrowed ; it would have been well if 
the author had appended the describers’ names. The work is ac- 
companied by a well executed plate (none too large) in which, 
strange to say, neatly one-third of the figures are of European 
species,—copied from Fischer’s work ; surely, from the abundant 
material in the author’s possession, suitable specimens could have 
been found for illustration. ; 
Brrrisa Marie SeawreDs.*—This is a convenient little book, 
of which four parts have already appeared, and five or six are to 
follow. Mr. Grattan, whose home is at Torquay in Devonshire, 
a place famous in the history of British natural history, is 4 
thorough enthusiast in seaweeds, and finding that the standard 
treatises on them were too scientific for the use of ordinary ama- 
teurs, and withal quite expensive, he has prepared this work, 
_ which is so simple that the most inexperienced student can readily — 
understand it, whilé the price, sixpence sterling for each part, is — 
moderate enough. Since a very large proportion of our New 
England alge consists of species occurring on the shores of Great 
Britain, and since Harvey’s Nereis, the only work on the alge of 
the United States, is costly and not suited to the needs of ama- 
teurs, this book will be very useful to those who not only collect, 
but desire to know something about seaweeds and sea-mosses.— 
Dante, C. Eaton, © 7 . 
Lupsocx’s Monocrapy or tue Popurx.—Sir. John Lubbock 
has recently published a ‘‘ Monograph of the Collembola and Thy- 
sanura.” It forms a volume, in octavo, of the Ray Society. The 
*) 
British Marine Alge: being a popular account of the Seaweeds of Great Britain, 
their collection and preservation. Illustrated. By W. H. Grattan. London: “The 
Bazaar” office, 32 Wellington street, Strand, VC. < 
