75 
a map showing the phyto-geographical divisions, and the author 
has notes on the history of botanical exploration in Arabia 
and a general sketch of the vegetation which he hopes to deai 
with at the end of the list. 
In a country like this, where the months of flowering and fruit- 
ing depend so much on the dates of the rare falls of rain, and 
where even rainless years occur, the author has nroperly included 
the years as well as the months in which each species Howered or 
fruited. ie 
The Flora of Madras, Part I11.—The issue of the first and 
second parts of the Flora of Madras. has been already noticed 
in the Kew Bulletin, 1916, ‘ 57-69, and 1918, pp: 222-228 
Their construction requires a wide and accurate knowledge of the 
living plants, coupled with discretion and patience. 2 7..D. 
# Identification of the Economic Woods of the United States, including @ 
discussion of the Structural and Physical Properties of y Samuel 
Bi r M.F., Professor of Forest Products, Yale University, 
ition, revi and enlarged. New York, John Wiley & Sons, Ine. 
London, Chapman & Hall, 1919. Price 8s. 6d. net. { 5% 
get 
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