DIRECTIONS FOR USE. 
The Linnean Dissertations are given here in strictly 
chronological order, based on the data given in Ilulth, 
Bibliographia linnaeamu 
These dissertations are divided into six classes, 
indicated by the small letters immediately below the 
serial number. These letters indicate the classifications 
of the Linnean Dissertations, given by the catalogue of 
the Linnean Society of London, as follows: 
b. - botanical 
e. - economic 
m. - medica 
z. - zoological 
m. m. - materia medica 
n. h. - natural history 
The column to .the right gives in abbreviated form 
citations to the libraries in which these dissertations 
are found in America. These libraries are as follows: 
N.Y. - New York Botanical Garden, Bronx Park, New 
York, N. Y. 
L.C. - Library of Congress, Washington, D. C. 
Agr. - U. S. department of Agriculture Library, 
Washington, D. C. 
Bar. - Dr. J. Ii. Barnhart ? s Private Library, New 
York Botanical Garden, New York, N. Y. 
J.C. - John Crerar Library, Chicago, Ill. 
A.A. - Arnold Arboretum. Boston, Mass. 
G.II. - Gray Herbarium, Boston, Mass. 
S.G. - Lib" * J ° "ion General’s Office, 
Col. - Columbia University Library, New York, N. Y. 
The index given at the end makes it possible to 
find quickly any dissertation cited, either by the origi¬ 
nal title or by the changed title in some cases given in 
the reprint. 
