218 
able in the Carolinas and Georgia as it is in New Jersey, and 
perhaps more so than in Maryland and Virginia. 
The area covered by the catalogue of plants is not quite coex- 
tensive with the coastal plain of New Jersey, but terminates 
at а county boundary about ten miles southeast of the fall-line 
(p. 40); an expedient justified by the fact that herbarium speci- 
mens collected in the counties through which the fall-line passes 
are in many cases not labeled with sufficient accuracy to indicate 
on which side of that important line they grew,* and the narrow 
strip of coastal plain thus excluded is probably too small to 
contain any characteristic species that are not represented in 
the rest of the area. 
By directing attention primarily to the vegetation the author 
has divided his territory into five pretty well marked regions, 
instead of the two divisions of the geologists, or only one as the 
zoólogists would have it. The colored map at the beginning 
of the volume shows the boundaries of the pine-barrens and the 
salt marshes very clearly, but combines the other divisions of 
the coastal plain in one color (and errs in including the whole 
of Staten Island in the coastal plain). ; 
The summary of the field work of the author and his associates, 
in the preface, is accompanied by a small map showing their 
routes of exploration, which illustrates a commendable tendency 
to study plants along routes, instead of at localities in the old- 
fashioned or traditional manner of systematists. 
The statistical lists of plants in various parts of the intro- 
duction are of a type familiar in some of the more pretentious 
local floras, and as they are not summarized the longer ones 
make rather dry reading. In other words, the opportunity to 
make some interesting generalizations about the times of flower- 
ing, modes of dissemination, percentage of monocotyledons, 
families and genera most numerously represented or conspicuous 
by their absence, etc., in each list was not taken advantage of. 
But that is so rarely done, and there are so many other things of 
interest and value in the book, that it would be unfair to criti- 
cize such omissions, and this remark is inserted merely as a 
suggestion for the future. 
* In this connection see Bull. Torrey Club 31: то. 1904. 
