180 
MM. Poisson and Chevalier of the Jardin des Plantes, Pro- 
fessor Flahault of the University of Montpellier, Dr. Huber 
i ilde 
land and arranged with Dr. Hans Schinz, the director, Ge an ex- 
change of hardy perennials a herbarium specimens from the’ 
United States also met Dr. John one director of the 
botanical wardens of Geneva, arranged with him for an ex- 
change of herbarium specimens and seeds. celeres to Wies- 
e any, I purchased from Herr A. Vigener an impor- 
tant Giese of herbarium specimens obtained by Dr 
S ; 
number of duplicates ‘ie are on able uture exchanges, 
I also arranged with er Vigener for oe nae next year, 
s 
representing, in a very satisfactory way, the flora of Central 
Europe; this when incorporated with our other collections will 
be of great Service tor comparison with our own flora. 
I spent nearly a week in Berlin and was much impressed by 
he very effective organization and capacity for work of the 
Sa at the botanical garden and museum. Berlin is now 
clearly the most active botanical center in the world. The 
o- 
dious site in the suburbs. n immense amount of grading and 
planting has been done here during the past three years, and the 
construction of very extensive plant houses is now going forward ; 
plans for the new botanical museum are being elaborated. The 
collections of living plants, museum and herbarium specimens, 
and books are unsurpassed. I concluded some exchange ar- 
ful to him for his kind attention and hospitality. Dr. Karl 
Schumann, Dr. Graebner, Dr. Warburg, and Dr. Gurke also gave 
