BOOK REVIEWS, 
467 
see such woods as Arbutus, box, buckthorn, cherry, Cotoneaster, 
elder, lilac, and white-beam included in his work. Botanists will 
not be satisfied with his nomenclature : Hippophea should be Hippo- 
phae ; and — which is more important — Abies should be restricted 
to the Firs, Picea to the Spruces. Another slip of minor consequence 
is the reference to Tradescant as introducing the horse-chestnut in 
the reign of Elizabeth and cultivating it in his Botanic Garden at 
Chelsea. The species may have been introduced before the end of 
the sixteenth century ; but there is no evidence that even the elder 
of the two Tradescants, both of whom were gardeners to Queen 
Henrietta Maria, travelled before 1620, and their garden was at 
Lambeth, not at Chelsea. 
These, however, are but small matters. Mr. Webster has pro- 
duced a book that will be useful to land-owners. His wide practical 
experience in growing and selling British-grown woods results in much 
useful information as to soils and prices in times of peace and war ; 
and, in addition to descriptions of each species in alphabetic order, 
he has given chapters on charcoal, coppice, oak-bark, and firewood. 
The plates are natural-size collotypes of the woods, and, if not of much 
use for identification, give a fair idea of the grain ; but in many cases 
somewhat exceptionally knotty or distorted specimens have been 
illustrated. 
"The Standard Cyclopedia of Horticulture/' By L. H. Bailey. 
Vol. v. La. 8vo. v -f-2423-3041 pp. (Macmillan, New York, 1916.) 
25s. net. 
We have already referred to the excellencies of this great book 
as earlier volumes have appeared. The present volume deals with 
plants whose names begin with letters from P to R inclusive, and 
contains also an enormous amount of information concerning such 
subjects as Pruning, Perfumery, Planting, and even Photography 
of Plants, and so on. We see that Paphiopedilum is used for most 
of our Cypripedium species (as in some British publications), but on 
the whole the names assimilate very well with those in general use 
in this country. 
The completeness of the treatment may be judged by the fact that 
no fewer than 167 species of Primula, besides many hybrids, are de- 
scribed, and by means of a key the name of any species may be ascer- 
tained. The exact value of such keys can be gauged, of course, only 
by use, and care and some knowledge is required for their intelligent 
utilization ; but they form a very marked feature of this great work, 
and so far as we have yet been able to test them they have proved 
very trustworthy guides in the " running down " of the plant one 
seeks, especially when the genus is known. 
Here and there one might wish for a little further enlightenment 
upon methods of propagation where they call for something more 
than ordinary garden routine. For example, there are two somewhat 
similar Climbing Polygonums in gardens, P. Baldschuanicum and P. 
