Miscellanies. 



373 



dated January 14th, 1839, in which is contained the result of seven 

 coincidences of observations of meteors, made 25th Nov. 1835, by 

 Messrs. A. D. Bache and J. P. Espy, at the house of Prof. Bache, in 

 Philadelphia, and by Professors Henry and Alexander, at the Philo- 

 sophical Hall, 0.1s. east of Nassau Hall, College of New Jersey, at 

 Princeton. As the time referred to by the Philadelphia observers is 

 that of the University of Pennsylvania, which is about 0.7s. west of 

 the State House, Philadelphia, the differences of longitude, given by 

 Prof. Alexander, have been diminished by 0.6s. to reduce them to the 

 State House, Philadelphia, and Nassau Hall, Princeton. The results 

 are contained in the table. The time of the disappearance of the 

 meteors was noted. 



The longitude of Nassau Hall : mean of meteoric, chronometrical, 

 and astronomical determinations ; is — 4h. 58m. 38.20s. 



2. Proceedings of the Boston Society of Natural History. Com- 

 piled from the Records of the Society, by Jeffries Wyman, M. D., 



Recording- Secretary. 



Feb. 2QtJi, 1840. — B. D. Greene, Esq. in the chair. 



Dr. A. A. Gould laid before the Society the following descriptions 

 of new species of shells, by Prof. C. B. Adams. 



1. Cerithium terebrale. C testa parva, elongata, sEepe albo- 

 cincta; anfractibus duodecim planulatis ; cum quatuor elevatis lineis, 

 quorum suprema in altera anfractu, supra inferum in precedente, su- 

 pra positaest; spira elevata, conica, sutura subimpressa; apertura 

 ovata, parva ; cauda ad sinistrum torta. 



Remarks. — This shell is found in New Bedford and vicinity, in the 

 soft mud below low-water mark. It was first regarded as a variety of 

 the C Emersonii ; it differs from that shell however in having a large 

 elevated ridge in the place of the carina on the upper part of the 



Vol. XXXIX, No. 2.— July-September, 1840. 48 



