Zoological Society. 811 



variation of the daily motion brought the two results much nearer ; 

 but a difference still remains between the observed times of perihe- 

 lion passage in 1826 and 1832, such as would arise from a resisting 

 medium. Towards ascertaining this point, M. Santini has recom- 

 puted the perturbations caused by Jupiter with the values of the 

 mass given by Laplace and by Professor Airy. Some of the results 

 are given in the Monthly Notices, 



X. Stars observed with the Moon at the Royal Observatory of 

 Cadiz, from May to December 1833. Communicated by Don 

 Sanchez Cerquero. 



XI. Occultations of £ Tauri, Oct. 4-, 1833, — of e Tauri, March 

 16, 1834-, — and of v Virgmis, April 20, 1834 1 , observed at Saville 

 Row. By R. Snow, Esq. 



XII. Eclipse of the Sun, July 17, 1833, observed at the New 

 Observatory of Geneva. By M. Wartmann. 



The corrected times of the beginning, middle, and end of the 

 eclipse were as follow : 



Geneva Sid. Time. 



Beginning 1* 3 m 52" 



Middle 1 53 28 



End 2 43 24 



Instrument, an equatorial of Ramsden, of 25 lines' aperture; power 

 30. Bar. 732 millimetres; therm. + 12°*8 Reaumur; both nearly 

 steady the whole time. The diminution of light by Nicod's photo- 

 meter was almost insensible, though perfectly appreciable by the 

 naked eye, and though two thirds of the sun's disc was eclipsed. 

 With a power of 135, the lunar mountains were distinctly visible. 

 M. Wartmann remarks, " La cir conference de notre satellite pa- 

 rassait comme dentelee, cest-a-dire Jbrmee d"asperites et de depres- 

 sions!' 



XIII. Transits of the Moon with Moon-culminating Stars, ob- 

 served at Cambridge Observatory in the months of April, May, and 

 June, 1834?. 



ZOOLOGICAL SOCIETY. 



June 1 0. A collection of objects of Zoology, made by Lieut. Allen, 

 R.N., Corr. Memb. Z. S., during his late expedition up the Quorra into 

 the interior of Africa, and presented by him to the Society, was exhi- 

 bited. It was accompanied by another collection formed by the same 

 gentleman at Fernando Po. They comprehended a previously un- 

 described species of Plover; an undescribed Tetrodon and a Myletes; 

 specimens of Polypterus Senegalus, Cuv., and of a Gymnarchus, Ej. j 

 and specimens of the three- horned Chamceleon, Chamceleo Oweni y 

 Gray, and of a Galago, Galago Senegalensis, Geoff, j the two latter 

 being from Fernando Po. They also included numerous Injects and 

 Arachnida, both from the interior and from the island. 



The bird was characterized by Mr. Gould as Vanellvs albiceps. 

 Between the eye and the upper mandible is situated a fleshy sub- 

 stance (resembling that of the common Cock) which hangs down at 

 right angles with the beak j it is of an orange colour, and is narrow 



