143 
of the Garden. I also executed there the various other commis- 
sions you had entrusted me with and was most courteously per- 
mitted to examine some types of North American plants pre- 
served in the main herbarium, as well as others in the Michaux 
Herbarium which is kept separate. A list was also made of 
all the mosses in the Michaux Herbarium for the use of Mrs. 
Britton. I was kindly given a note of introduction to M. 
le Dr. Deniker, the Librarian of the Muséum and arranged 
with him to receive a series of the Bulletin and of the Axznales 
du Muséum in exchange of an equivalent series of our publica- 
tions. 
A visit was made to the Natural History Library of M. Adrien 
Dollfus, the Editor of the Feuille des Jeunes Naturalistes and we 
are fortunate to have secured from him a nearly complete set of 
his publications in exchange. 
mong the many other courtesies received during my stay in 
Paris, Dr. F. Camus put at my disposal some types of North 
American mosses from the Herbarium of Michaux for examina- 
tion by Mrs. Britton, and also promised us exchanges of mosses 
from various French localities. 
Some interesting bibliographical notes were made at the Biblio- 
théque de I’Institut de France to the Librarian of which Prof. Van 
Tieghem gave me a note of introduction, as none except mem- 
bers and those accredited by them are admitted. This library 
contains in the ‘“‘ Fonds Delessert’’ the collection of botanical 
books willed to the Institut by the late Benjamin Delessert 
and among many interesting and rare volumes is an apparently 
unique copy of the plates of the fourth volume of Ruiz & Pavon’s 
Flora Peruviana, a list,of which I made for future reference at 
the Garden. Two copies of the Alora Graeca are preserved in 
the Institut, one of which is bound in green morocco exactly 
similar to that of the copy purchased at the Jordan sale for the 
Garden. 
After leaving Paris early in June, a short trip was made into 
Belgium and Holland. 
At Antwerp, I searched through several second-hand book- 
shops and purchased some twenty-five volumes, mainly old 
