Miscellanies. 373 
dated January 14th, 1839, in which is contained the result of seven 
coincidences of observations of meteors, made 25th Noy. 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 
thé 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 
meteurs was noted. . 
Meteor.| N. Hall, East of Céeageeniiaa - Observers. 
State House. Weight. 2 
a j+2m. 0.45sec. I Espy and Alexander. 
vie“ Wa 1 «and ” and Henry. 
ec {+1 59.20 « 0.5 “and Henry. 
d |4+2* 0.20 « 1 me ene <2 
e {+2 1.00 “ 1 Bacheand “ 
f }42 -.0.80.« i= ‘© and Alexander. 
£ jAt+2"* 2.60 « 0.5 | Espy and Henry. 
Mean according to weights + 2m. 0.61 sec. 
S. House, W. of Greenwich —5h. 0 * 39.12 « 
N. Hall, W. of Greenwich —4“ 58 “ 38.51 “ 
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 Jerrrizs Wyman, M. D.,_ 
Recording Secretary. ae 
Feb. 26th, 1840.—B. D. Greene, Esq. in the chair. 
Dr. A. A. Goutp laid before the Society the following descriptions 
of new species of shells, by Prof. C. B. Adams. 
1. CeriTHium TEREBRALE. C. testa parva, elongata, sepe albo- 
cincta; anfractibus duodecim planulatis ; cum quatuor elevatis lineis, 
quorum suprema in altera anfractu, supra inferum in precedente, su- 
pra posita est; spira elevata, conicé, sutura subimpressé; 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 
