CONTENTS. 
PAGE 
Proceedings: October 5th, 1891. Death of Dr. Northrop : 
Election of Members . ‘ - : : 3 
Coleopterological Notices, No. I. By Tuomas L. Casey . 
Will of Madame Goguet, veuve Guzman . 5 
Sundry Communications by Members tg 
The Scientific Alliance of New York . ° 
Proceedings: October 12th, 1891 . z : . S A 
The American Species of the Genus Aveaiotie: By N. L. Brirron 
A Memorial of Dr. John I. Northrop . 
Proceedings: October 19th, 1891 12 
The Trap Dikes in the Lake Champlain Valley nif the Neighboring 
Adirondacks. By J. F. Kemp and V. F. Marsters s : ates 
Proceedings, October 26th, 1891 5 4 cs 5 = . - . 24 
The Eggs of the Plover. By H. Carrineron Boron . . 24 
Lecture: Paraguay, the Land and the People. By THomas Masete 24 
Proceedings : November 2d, 1891 25 
Election of Members . 25 
Astronomical Section: On the Reduction of Transit Oborsayiune by 
Least Squares. By Haroxp Jacosy “ 25 
Proceedings: November 9th, 1891 ; : : : eer 
Ancient Inscription on a Wall at Chatata, Tani By A. L. Rawson 26 
The International Geological Congress. By D. S. Martin 28 
Proceedings: November 16th, 1881 . 2 : : ee, 
Lecture: Woman’s Part in the Earlier Civilizations. By Orvis T. 
Mason . . : - : - ° 4 - » 29 
Proceedings: November 23d,1891 . : : . 30 
Flexibility of the Upper Mandible of fas Hadeouie Goawit. By 
Wma. P. TRowBRIDGE . : 5 . 30 
Observations on the Opal Mines of Sivagaty: and the Ocbateanad of 
Opal in Washington and Oregon. By Grorce F. Kunz . : . 32 
Origin of Garnets and Associated Minerals in the Garnet District of 
Bohemia and Saxony. By Grorce F. Kunz . . . : oe 
Proceedings: November 30th, 1891 . - = “ .. 3e 
The Clays of the Hudson River Valley. By ernie Rigs. . 933 
Committee on the Death of Dr. John C. Jay . ‘ : 4 » 39 
Proceedings : December 7th, 1891 . : a i 5 : 3 - 40 
Report of the Jay Memorial Committee. : 2 - ; - 40 
Election of Members H “ 2 “ : : 2 : - -40 
oD MO ONNNH 
[So ee 
