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papers and their discussion, and (2) those of the persons dele- 
gated for the discussion of the special subject of botanical nomen- 
clature, which has been prepared in advance by an international 
commission appointed at the congress held in Paris in 1900, of 
which I had been a member, the various propositions aur been 
brought into available form for comparative consideration by Dr. 
John Briquet, the general reporter of the congress, ae labors 
in accomplishing this work were very great, and received the 
earty commendation and gratitude of the assemblage. Impor- 
tant results were reached by both series of meetings. A promi- 
nent feature, in connection with the congress, was an interesting 
exposition of specimens and apparatus seca ears 
research arranged by the International Association of anists, 
which met with the congress. This was well Roane in the 
orangery . the imperial palace at Schoénbriinn and was opened 
to the public for two weeks. Visits to the museums, libraries, 
parks and gardens of Vienna were made at intervals between the 
meetings; many excursions to points of botanical interest in 
Austria and Hungary, both before and after the congress, were 
arranged by the local committee, but I found my available time 
insufficient for participation in them 
The botanical garden and institute of the pane situated 
on the Rennweg, quite within the city, is under the direction of 
Prof. R. von Wettstein. The extensive plantations “exhibit a 
great ees of species, arranged principally in three series. 
(2) T palin collection, consisting of species Gia ae 
the oe families of plants, in which herbaceous plants, shrubs 
and trees are aa into close comparative distance, the three 
not being separated inte oo plantations ; both hardy and 
tender ploy 6) A series of wesuriphical a 
being illustrations of the floras of various countries, in which 
similar mixture is used; and (c) biological groups, consisting of 
ie selected to illustrate various phenomena of plant life, 
such as parasitism, sensitiveness, vegetative propagation, methods 
oe Ga distribution of seeds and fruits, and hybridity. The 
path system is very extensive, so that the great majority of plants 
set out may be seen without leaving it. Each individual plant or 
