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recognized as one of the actual requirements for the development . 
of the special branches of botany, at all events for lichenology. 
This eminent lichenologist has left his lichenological library to 
Amherst College Library, Mass., U. S. A., with the condition that 
this library should be preserved and developed as a special de- 
partment of this institution. This foundation is known under the 
name of “The Tuckerman Memorial Library.” Every student 
of lichens who wishes to see his science progress will carry out the 
last wishes of Tuckerman. 
It is satisfactory to hear that the example of Tuckerman has 
found an imitator. At the suggestion of a well known lichenolo- 
gist, Dr. A. Minks, of Stettin, the directors of the Boissier Her- 
barium have instituted a Hall Miiller-Argau, especially conse- 
crated to the lichenological library and exsiccata, the basis of the 
works of Miiller-Argau. By an ageeement signed January 6, 
1886, the scientific collections of Miiller-Argau have become at his 
death, January 25, 1896, the property of the Boissier Herbarium, 
under the name of FoNDATION MUELLER-ARGAU. 
In a purely scientific interest the directors of the Boissier Her- 
barium beg botanists to be so good as to send to the address 
below all lichenological publications which have appeared since 
the death of Miiller or may appear hereafter. As papers reprinted 
for private circulation are and should be found in special libraries 
in series as complete as possible, the attention of authors is called 
to this point that they may forward their works to the library. 
Another not less important desideratum is that creators of 
new lichen species, collectors of rare lichens, or of important ma- 
terials for morphological and biological researches in the domain 
of lichens, be so good as to deposit specimens in the LICHENO- 
THECA UNIVERSALIS MUELLER-ARGAU, which contains already the 
complete herbarium of the Bernese F. Schaerer (1785-185 3). 
A special receipt will be sent for each gift, which will be an- 
nually recorded in the “ Bulletin of the Boissier Herbarium.” 
We beg botanical societies and editors of botanical periodicals 
to kindly help towards the success of this new foundation by mak- 
ing it widely known. 
EuGENE AUTRAN, 
CHAMBESY NEAR GENEVA. Curator of the Boissier Herbarium. 
March 20, 1897. 
