1891.] 



NEW YORK ACADEMY OF SCIENCES. 



93 



PART II. 



List of general subjects, under which are arranged the titles of the 

 several papers, etc.: 



1. Astronomy, Cometary. the solar system. 



I. COMETARY ASTRONOMY. 



Sur les Queues des Cometes. Par Th. Bredichin. I., 99. 

 Sur les Configurations des Cometes, par Theodore Schwedoff. III., 113. 

 Quelques Mots sur les Cometes : Reponse a M. Schwedoff. Par Th. Bredi- 

 chin. III., 121. 

 Comet of 1733. I., 164. (Remarks on the probable identity of this 

 comet with the comet of 1807 and comet b 1881, the conclusion being 

 that they are not identical. — R. C.) 



Reply to the Remarks of Dr. Copeland on my Calculation of the 



Place of the. By J. A, C. Oudemans. I., '207. 

 Comet of 1744, On the Multiple Tail of the Great. By J. L. E. Dreyer. 

 III., 104. 



Sur la Queue Multiple de la. Par Theodore Schwedoff. III., 182, 



Further Note on the. J. L. E. D. III., 184. 



Comet of 1812 (Brooks', 1883), Observations of. III., 131. 

 Comet 1880 d (Hartwig), Observations of the Spectrum of. I., 1. 



Observations of. I., 4. 



Comet Faye (1880), Observations of. I., 4. 



Comet Schaeberle (1880), Observations of, I., 4. 



Comet 1880 /'(Pechule), Observation of the Spectrum of. I., 40. 



Comet Encke, Observations of (in 1881). I., 182 and 186. 



Comet a 1881 (Swift), Elements and Ephemeris of. I., 120, 121. 



Observations of . I., 122. 



Comet b 1881, Elements. Ephemeris, and Observations of . I., 141, 161, 

 163. 177, 211 ; II., 42, 60. 



The Polarization of Light from. By Arthur W. Wright. I., 157. 



Observations of the Spectrum of. I., 162. 



Cometes 5 et c 1881, Recherches sur les. Par Th. Bredichin. II., 1. 

 Note supplementaire sur les. Par Th. Bredichin. II., 56. 



