CONTENTS. 



Laws of the Society relating to the Transactions, ........ . iii 



Officers of the Society for the Year L853, ......... iv 



List of the Members of the Society elected since the Publication of the Ninth Volume, ... v 



Obituary Notice, . vii 



ARTICLE I. 

 Astronomical Observations made at Hudson Observatory, Latitude 41° 14' 42".6, north, and Longitude 

 5/;. 25m. 39s.5, west. Third Series. By Elias Loomis, Professor of Mathematics and Natural Phi- 

 losophy in the University of the City of New York, ...... . . I 



ARTICLE II. 



Supplementary Note on the Construction and different Forms of the Magic Cyclovolute. By E. Xulry, . 17 



ARTICLE III. 

 Materials towards a History of the Colcoptcra Longicornia of the United States. By 8. 8. H ald e man, 27 



ARTICLE IV. 

 Description of New Fresh Water and Land Shells. By Isaac Lea, '•< 



ARTICLE V. 



Memoir explanatory of a New Perpetual Calendar, Civil and Ecclesiastical, Julian and Greg ri D 



William M'llvainc, .108 



ARTICLE VI. 

 On the Corpus Luteum. By Charles D. Mi igs, M !>., Mem. Am. Phil. Soo., Prof of Mil u I D 



of Women and Children in Jefferson Med. Coll., ... ' ' 



ARTICLE VII. 



Investigations which led to the detection of the coincidence b tween the eompul 



Terrier, and the observed place of a Star recorded by Iialande, in Ma; L795. B; ' I" 



ARTICLE VIII. 

 Memoir on the Reproduction of the Opossum. Didelphia Tirginiana. ByCharlosD M' .Ml', 



ARTIOLE IX. 

 On some of the Results of a Series of Experiments relative to difsrenl parti of Om i 

 Etob rl i u, of the United Stab 9 Navy. Con n 



C 



