362 TJie American Geologist. June, i9oo 
distributed to several institutions generous specimens of some 
very peculiar boulders which he found in Thetford, Vt., and 
which proved to be a form of limburgyte. At the Philadel" 
phia meeting of the Association of American Geologists 
and Naturalists in April, 1841, Prof. Hubbard exhibited and 
described, orally, specimens of slate from Waterville, Maine, 
containing impressions which he referred to annelids.* At 
the Boston meeting of the Association in the following year 
we find that he "offered some remarks on the drift of New 
Hampshire, exhibiting a remarkable specimen of a bowdler 
of smoky quartz containing acicular crystals of rutile","]" and 
that he was added to the committee on drift, which was 
investigating the erratics and glacial scratches of northeast- 
ern North America under the auspices of the Association. 
Prof. Hubbard was a man of fine physicjue and of very in- 
tellectual appearance. He was energetic in action, kindly in 
manner, and very apt in conversation. Up to within two 
years of his death he was a frequent and always a welcome 
visitor at the various scientific institutions in New York City, 
and he attended the meeting of the Geological Society of 
America at Columbia University in December, 1898. While, 
as was to be expected, much of his conversation in late years 
was reminiscent in character, he maintained a lively interest 
in current affairs and was an ardent sympathizer with the 
Boers in their present struggle with England. His son 
writes me, "His mental and physical powers were unimpaired, 
and he had none of the weakness or decreptitude of old age ; 
in fact, except in years he was never in any respect an old 
man." Prof. Hubbard married. May 17, 1837, Faith Wads- 
worth, daughter of Benjamin Silliman, who died October 25, 
1887. A son and a daughter survive him. 
Bibliography of the geological and mineralogical publications of 
Oliver Payso7i Hubbard. 
Geological and mineralogical notices. [Northern New York.] Am. 
Jour. Sci. & Arts, vol. 32, pp. 230-235. 1837. 
Observations made during an excursion to the White Mountains, in 
July, 1837. Am. Jour. Sci. & Arts, vol. 34, pp. 105- 124. 1838. 
*Trans. Assoc. Am. Gaol, and Nat., 1840-1842, p. 16, Boston, 1843. 
tibid., p. 61. 
