40 TRANSACTIONS OF THE [nov. 11, 
The first paper of the evening, that of Prof. Osborn, “A 
Memorial Tribute to Prof. Thomas H. Huxley,” was then pre- 
sented, and in it were reviewed the main facts of the life of Dr. 
Huxley, together with many notes of Prof. Osborn, one of his 
pupils. (See below.) 
The second paper was by Dr. Bashford Dean, entitled : 
‘* Notes on Ancestral Sharks.” The paper dealt with some of 
the recent discoveries among the fossil sharks of the Lower 
Carboniferous in Ohio. An examination of this material during 
the past Summer in the collection of Dr. William Clark, of 
Berea, Ohio, had enabled the speaker to describe, in addition to 
the known characters of these primitive forms of Cladoselachids, 
the vertebral axis, the suspensorium, the matter of claspers and 
the integumental characters. 
The third paper on ‘‘ Newly Mounted Skeletons of Titano- 
therium and Metamyodon in the American Museum,” with illus- 
trations by Prof. Osborn, was deferred, as were also papers 
announced by Dr. J. L. Wortman on the “American Museum 
Expedition of 1895,” and by Prof. Britton on ‘“‘ New or Note- 
worthy North American Phanerogams.” 
In their place Dr. Arnold Graf spoke of a peculiar growth 
character in Crepidula, recording the adjustment of its shell to 
that of a scallop, the margin of the shell of the crepidula con- 
forming exactly to the ridged character of the shell of its host. 
Discussion by Prof. Martin and Dr. Dean. 
The meeting adjourned. BaAsHFrorD DEAN, 
Secretary of Section. 
MEMORIAL TRIBUTE TO PROFESSOR THOMAS 
Ho HUXLEY, 
By Henry F. Osporn. 
Presented before the Section of Biology, November 11th. 
All the members of this Academy, all men of science in 
America, in fact, are in different ways indebted to the late Pro- 
fessor Huxley. We would be ungrateful, indeed, especially in 
