142 
form of riparia, exactly analogous to C. vesicaria, L., var. pen- 
dula, Uechtr. Herb. Cf. Asch. & Graeb. in Syn. Mitt. Fl. 212, 
190. It may be called f. pendula.—A. Bennett.’’ A specimen 
of this plant has been seen in the private herbarium of Mr. Bruce 
Jackson, A.L.S. W. Be T. 
Forests, Woods and Trees.*—Professor Henry’s book appears 
most opportunely. ‘The depletion of British forests consequent on 
the demands for timber during the war has created an interest in 
factory. This subject, although the predominant one in Professor 
Henry’s book, is far from being the only one. The question of the 
influence of forests on climate is fully discussed, and from the 
statistics given it would appear that their effects on rainfall are not 
so great as is generally supposed. Hspecially is this the case with 
regard to this question. An ineradicable conservatism as a rule 
prevents them from planting any but the most ordinary things, in 
* Forests, Woods and Trees in Relation to Hygi i 
, giene. By Augustine Henry, 
M.A., F.L.S., MR.I.A. Constable & Co., tian, 1919, Price 185. nr may 
