117 



Prof. Loomis gives the latitude of the Hudson Observatory from 

 63 culminations of Polaris, with the meridian circle, 

 41° 14' 42"6 

 The paper extends the series of moon culminations to the number 

 of 259, and contains two occultations. 



The longitude of Hudson Observatory, from Greenwich, by 150 

 corresponding moon culminations, is as follows: — 



From 72 Greenwich observations, 5A 25m 40.6s 

 33 Cambridge, E. „ 39.2 



18 Oxford „ 37.8 



27 Edinburgh „ 39.4 



Allowing double weight to the Greenwich observations, the mean 

 result is, 



6h 25m 39.5s 

 The observations of Encke's comet in 1842, of the great comet of 

 1843, of the first Mauvais comet, and of the Faye comet, are given 

 in full, with the apparent place of the stars used for comparison. 

 The Faye comet was followed by Prof. Loomis, till the 11th of Feb- 

 ruary, 1844. 



This paper concludes the series of Prof. Loomis' labours at Hud- 

 son, he having accepted the appointment of Professor in the New 

 York University. The Hudson Observatory is now in the hands of 

 Prof. James Nooney. 



Mr. Lea read a paper, entitled "Supplementary Note on the 

 Construction of different Forms of the Magic Cyclovolute, by 

 E. Nulty," which was referred to a Committee, consisting of 

 Dr. Patterson, Mr. E. Morris, and Professor Kendall. 



Dr. Patterson called the attention of the Society to a paper 

 read before the Pliilosophical Society on the 14th of January, 

 1768, by Provost Ewing, prior to the union of the two societies 

 from which this Society was formed. This paper, which has 

 never been published, contains a general theory of magic 

 squares, with its application. It was referred for examination 

 to the same Committee. 



Dr. Dunglison, at the request of Dr. Meigs, who was absent, 

 read a paper, entitled "Case of Spina Bifida, by Henry Bond, 

 M.D.," which was referred to a Committee consisting of Dr. 

 Meigs, Dr. Dunglison, and Dr. Hays. Dr. Dunglison prefaced 

 the reading of the paper by some remarks on the nature and 



VOL. IV. — Q 



