187 
the great superiority of the objective with which they were 
taken; viz.: a is immersion lens made by Powell and 
Lealand, of London. With it the Surirella gemma, a Diatom 
long used as a “test-object” by microscopists, and upon 
which they had hitherto been only able to see very fine 
longitudinal strize or, at best, indistinct elongated hexagons, 
according to Hartnack, of Paris, was now proved to be 
covered all over, as these pictures show, with circular, as Dr. 
Woodward thinks, or perhaps as he, Prof. KE. thinks, equilate- 
ral hexagonal reticulation. So also Amphipleura pellucida, 
another Diatom and favorite test-object, upon which, up to this 
time, no markings can truly be said to have been seen at all, 
Dr. Woodward’s pictures show to be marked with trans- 
verse strize, which doubtless further researches will prove to 
be composed likewise of equilateral hexagons. 
On motion of Prof. Edwards, a vote of thanks was unani- 
mously tendered to Dr. Woodward, for his very valuable 
contribution. 
Dr. L. FEUCHTWANGER exhibited a fine specimen of 
Encrinus lilitformis, from the Trias of Germany. 
The Librarian presented, in the name of Mr. A. J. COTHEAL, 
thirty-eight volumes of books of Natural History. 
On motion of Dr. Feuchtwanger, the thanks of the Society 
were tendered to Mr. Cotheal, for his valuable contribution. 
The Committee to draw up resolutions relating to the 
Paleeontological Museum, presented the following resolutions, 
which on motion were accepted. 
Resolved—That the Lyceum of Natural History in the 
city of New York, has learned with deep regret, of the 
temporary suspension of the work of restoration of the forms 
of extinct animals, as hitherto prosecuted in the Central Park, 
under the able superintendence of Prof. B. Waterhouse 
Hawkins. 
Resolved—That the Lyceum considers the proposed 
Palzeozoic Museum, not only a valuable acquisition to the 
scientific treasures and resources of the city, but also a 
