REVIEWS AND EXCHANGES 
91 
amount, and this has now to be raised. A great final efibrt 
is now needed, and it is likely to be as difficult to make 
it as any that has gone before. 1 am sure that Members 
would like to know how matters stand, and perhaps may still 
like to help. Shillings are welcome where pounds are difficult 
to get. 
58, Whitworth Road, Edward A. Martin. 
South Norwood, S.E. 
REVIEWS AND EXCHANGES. 
lutrodtution to Plant Ecology for the use of Teachers and Students. By Rev. 
Prof. G. Ilenslow. 5 inches x 7J inches. 130 pages. Stanford. Price 
2s. 6d. 
Perhaps addressed rather to teachers than to students, this little book is an 
admirable sketch of the ground covered by that aspect of Nature study known 
as Plant ecology. It appeals mostly to British conditions ; and, though enumer- 
ating five types of xerophytic stems and eleven of xerophytic leaves, it does 
not drive the student to desperation with the preposterous array of new terms 
coined by Mr. Clements. We are glad to read Professor llenslow’s cogently 
urged defence of the study of external anatomy or morphology from the neglect 
of some ultra-modern teachers. As an example of the interesting and original 
illustrations with which the little volume abounds, we may quote this reference to 
the Common Reed, Phragmites communis. “ This abounds on the island Rhoda, 
near Cairo, and while growing in water exactly resembles the native plant in 
England. But it has spread to adjacent land which is rarely supplied with 
much water. Here it develops short and sharp-pointed leaves, and has even been 
called var. stenophylla ; but should a growing stem be suddenly supplied with 
water, the normal form of leaf is at once produced on the same, with the pre- 
viously formed ‘ sienophyllous ’ foliage below.” 
The Booh of the Open Air. Edited by Edward Thomas. Part i. Complete in 
twelve parts. 8i inches x 12 inches. 40 pages. With 5 illustrations in 
colour. Hodder and Stoughton. Price is. net. 
That this new and sumptuous publication will contain plenty of the best 
descriptive writing is evidenced by the names of its contributors, among whom 
Mr. Warde P'owler, Mr. Dewar and Mr. Walter Johnson appear in the present 
part, while contributions are promised by Mr. Hudson, Mr. A. H. Patterson, 
Ur. Gerald Leighton, Mr. Reginald Lodge and Mr. Oliver Pike. There are to 
be fifty illustrations in colour ; and if the test are equal to those in this April 
part, two of which are from photographs by Mr. Charles Reid, of Wishaw, they 
will alone be well worth the price of the book. Each number is to contain an 
“Open-air Diary” for the month, and this, with the rest of the letterpress, is 
beautifully printed in fine bold type (though in double columns), on good paper. 
Such subjects as rain, dew-ponds, the otter, spring flowers, butterflies and 
woodpeckers, show that in text and plates all tastes are considered. 
Field-Path Rambles. By Walker Miles. Series 29. Comprising Routes over 
Leith Hill and between Dorking and Horsham. 4J inches x 5J inches. 
72 pages. With 28 illustrations. R. E. Taylor and Son. Price is. net. 
Mr. Walker Miles must surely be answerable for some considerable propor- 
tion of that vastly increased body of pedestrians met with nowadays wisely 
enjoying our country walks near London. We have often expressed our belief 
that as guide-books these pocketable volumes are unequalled ; the illustrations 
from photographs, mostly by Mr. Alfred Bedding, make them also delightful 
souvenirs of many a well-remembered ramble. The present instalment deals 
with ground sacred to the memory of John Evelyn, and familiar to the members 
of our Field Club ; whilst, in addition to the usual purely topographical matter, 
it contains notes on the view from Leith Hill Tower, and on the place-name 
