312 NEW PUBLICATIONS. 
terior passing off towards the thin end of the chalk ridge, and western » 
margin of the county about Bagshot, Chobham, and Aldershott, into. 
a thinly populated region, in which uncultivated sandy heaths are the 
leading feature. Probably, unless Devonshire be an exception, there is 
more uncultivated heatherland in Surrey, metropolitan county though 
it be, than in any other English shire on the south side of the Humber.: 
The principal streams are branches of the Thames. The Wey rises in- 
Hampshire, breaks through the chalk at Guildford, and after receiving 
the drainage of the sandy heaths of the north-west, falls into the Thames : 
at Weybridge. "The Mole drains the greater part of the Surrey portion 
of the Weald, and breaking through the chalk between Dorking and 
Leatherhead, falls into the Thames, near Hampton Court. The Wandle - 
rises only on the north side of the Downs, and flows from Croydon 
to the Thames at Wandsworth. Besides these, in the south, small 
branches of the Arun and Medway come within the county limits. 
The present work was planned out and its preparation energetically 
superintended up to a point of considerable completeness, by an excel- 
lent and trustworthy botanist, the late Mr. J. D. Salmon, who for many 
years resided at Godalming, a conveniently central position for explora- . 
tion. He died about three years ago, and his manuscripts and collec- 
tions were purchased by the Holmesdale Natural History Club, which 
has its head-quarters at Reigate, and placed in the hands of Mr. J. A. 
Brewer, of that town, also a resident botanist and collector of many 
years’ experience, to prepare the work for publication by adding what 
he was able from his own observation and what he could obtain from. 
others, and arranging the body of detail thus gathered together. . And 
now we have here the result in the shape of a neat duodecimo of 350 
pages, similar in outward appearance and internal arrangement to the 
recently published Floras of Cambridgeshire and Essex. 
The county is not one that could be very conveniently separated into 
districts founded upon the river-drainage, Mr. Salmon’s districts 
are nine in number, and have apparently been mapped. out npon o 
the plan of separating the main quadrangle of the county into nme 
subordinate squares, or shapes as near squares as suitable boundary 7 
lines could be obtained to limit, the boundary-lines being sometimes ' 
the streams and sometimes lines of high-road and railway. The phy- 
sical features of each of these districts Mr. Salmon had briefly described, 
and his districts and descriptions are judiciously adopted by Mr. Brewer ^ 
