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vidual herbaceous species are given relatively large plots, averag- 
ing perhaps three feet square so that considerable masses of 
them are obtained, this being a striking feature of the plantation 
In addition to this systematic series, there are plantations illus- 
trating plant ecology and others devoted to geographical botany, 
and one end of the garden contains a small arboretum. The 
labelling throughout is very complete and accurate, showing 
both the botanical names and the German names of the plants, 
and their natural distribution. The “smaller” garden contains 
mber of greenhouses containing a large collection of tropical 
plants ; an extensive rockwork devoted mainly to the cultivation 
of mountain plants, and an elaborate biological series. The fine 
building containing the laboratories and other facilities for teach- 
ing and research is at one side of this smaller garden 
On leaving Munich, we proceeded to Amsterdam, by way of 
Mayence and Coblentz, and on June 22, visited the botanical 
garden of Amsterdam, of which Professor es de Vries is the 
director. It occupies a city square. The out-of-door collections 
are systematically arranged, thoroughly aces and contain 
many interesting species; the shrubs are kept separate from the 
herbaceous plants; the jimited area does not permit the growth 
kinds of trees. There are several greenhouses, con- 
jiae a select collection of tropical plants in very good order. 
I naturally took great interest in seeing there the specially 
enclosed plots devoted to Dr. de Vries’ famous experiments on 
plant mutations, which have been repeated and elaborated by 
r. MacDougal at our own institution. 
Arriving at Kew on June 23, two weeks were devoted to the 
study of the collections there. The fire-proof extension to the 
herbarium and library building, work on which was in progress 
at the time of my last visit, has been completed, giving this col- 
lection about double the space it previously had, and providing 
much additional room for books and charts. The old herbarium 
building has also been completely overhauled and fire-proofed. 
The immense task of moving the collection twice has been suc- 
cessfully accomplished, and it has now all been brought into one 
series, The present equipment and facilities provided for work 
