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5 
seem to me nearer in age to the rocks which, in Santo Domingo, I called 
Miocene, but whatever be their real age, the one fact is well established : 
The Isthmus was elevated at a period not remote from the age of the 
great volcanic outflow of the Sierra Nevada. 
Yours, sincerely, 
W. M. GABB. 
The minutes of the Board of Officers and Council were 
read. : 
Pending nominations, 703 to 707, and new nominations, 
708, 709, 710, were read. 
And the Society was adjourned. 
Stated Meeting, December 6th, 1872. 
Present, 13 members. 
Vice-President, Mr. Frauey, in the Chair. 
Letters accepting membership were received from Mr. 
Broca, dated Paris, November 14th, and Mr. Hale, dated 
Clinton, Ontario County, Canada, November 26th, 1872. 
Photographs of Mr. B. 8. Lyman and Mr. W. M. Gabb 
were received for the Album. 
A letter desiring the establishment of correspondence, was 
received from Mr. W. A. Smith, Secretary of the Tennessee 
Philosophical Society, dated Columbia, Tennessee, Novem- 
ber 21st. On motion, the Society named was ordered to be 
placed on the list of correspondents to receive the Pro- 
ceedings. 
A letter from M. de Koninck, dated Liége, September 3d, 
requesting the Society to supply deficiencies in his suite of 
its Proceedings, was read, and, on motion, the request 
granted. 
Letters of acknowledgment were received from the Caro- 
linian University,at Lund, August Ist (XIV.,i.11.,73 to 85) 
the Physical Society, at Berlin, September Ist (X1V..,1. 11.,88 
to 86); the Society at Bonn, August 6th (84 to 86); the 
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