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2 
Sufficient materials have been collected to authorize us in 
publishing, thus early, the first number of our Contribu- 
tions.'^ The frequency of this publication will, however, 
entirely depend upon the matter presented. 
As we are happy to be the means of disseminating know- 
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due attention — it being distinctly understood that the so- 
ciety do not hold themselves responsible for the accuracy 
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mutual intercourse with scientific societies and individuals, 
by inviting an exchange for such duplicates of books and 
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sion, and of which we shall from time to time furnish cata- 
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