1908] Wiegand,— Gray's Manual, Seventh Edition 195 
genus of the familiar text synopsis. In the use of the various kinds 
of type too an attempt has been made to follow the plan of the pre- 
vious editions. 
The conservative attitude of the authors is also evidenced by the 
retaining of the old limits in family and genus as opposed to the prac- 
tice of segregation. Тһе Compositae, Rosaceae, and Leguminosae 
still retain their old limits; as also do Pyrus, Potentilla, Oenothera, 
and Habenaria. 
The familiar glossary is found at the end of the book, and also a 
specially prepared index. ‘This index includes family, generic, speci- 
fic, and popular names, as well as synonyms, all in one, and is a specially 
commendable feature of the work. 
The authors have been assisted in the revision by specialists in 
certain groups. The Gramineae have been revised by Prof. A. S. 
Hitchcock; the Orchidaceae by Mr. Oakes Ames; the Genus Viola 
by Pres. Ezra Brainerd; Equisetum and Isoetes by Mr. A. A. Eaton; 
Senecio by Dr. J. M. Greenman; and Crataegus by Mr. W. W. 
Eggleston. 
The area covered by the Manual has been somewhat changed. ‘The 
range of this edition is from the Atlantic Seaboard to the western 
boundary of Minnesota and Iowa and south along the 96th meridian; 
and from the 48th parallel at the east, and the international boundary 
at the west, southward to the southern boundary of Kansas, Mis- 
souri, Kentucky, and Virginia. 
The following statistics are interesting,— 
6th Ed. Genera Species 
Native Introd. Native Introd. 
Monocots. 170 29 721 64 
Dicots. 581 106 1908 380 
‘Total 751 128 2629 414 
7th Ed. 
Monocots. 184 26 993 02 
Dicots. 596 154 2280 Bel 
Total 780 180 3273 663 
The press work is of high class and is а credit to the publishers. 
Especially is this true when the task of condensing 926 pages into a 
book of convenient size is considered. A leather-covered pocket edi- 
tion is in press. 
As a whole the work is fully up to the standard of Gray's Manuals, 
