REVIEWS AND NOTICES OF BOOKS. 363 
REVIEWS AND NOTICES OF BOOKS. 
Fremdlindische Wald-und-Parkbiume fiir Europa. By HEINRICH 
Mayr, Dr. philos. et oec. publ., o. 6. Professor der forst- 
lichen Produktionslehre an der k. Universitat zu Munchen. 
This important work runs into over 600 pages, and contains 
258 illustrations in the text, to which are added 20 plates, made 
up of 354 illustrations, many of which are beautifully coloured. 
From the above it will be gathered that the book contains a 
vast amount of information, and what is more important is that 
this information has been collected at first hand by the author 
in his world-wide travels. Prof. Mayr has been round the world 
no less than three times, visiting the forests in every continent 
and in every region. He has therefore had the opportunity 
of thoroughly studying in their native habitats the trees with 
which he deals, and can speak with great authority regarding 
their characteristics from a botanical, sylvicultural, or arbori- 
cultural standpoint. He has, further, spared no pains to record 
every fact and to give every detail concerning the species which 
may be cultivated for use or ornament in Europe. 
A most interesting and striking. feature of the book is the 
masterly way in which the author deals with the natural 
distribution of trees and forests. He has collected from personal 
observation, and from every possible source, all the available 
data concerning the climate in which the trees find themselves 
at home. The past meteorological records, combined with the 
author’s careful study of the indigenous Flora, as well as the 
horticultural and agricultural plants cultivated in the various 
regions and climates, form the basis upon which he has mapped 
out the distribution of the different species of forest trees. The 
zones of forest vegetation are indicated according to latitude 
and altitude. 
In the first section of the book, the natural distribution of the 
exotic forest and park trees is thus dealt with in a manner so 
scientific and practical that one need never be at a loss to know 
how the exotics are likely to behave when introduced into 
similar climates in Europe. In addition to all this, Prof. Mayr 
