PON 
Obituary, of F. Pascalis, xxv, 216. 
, of F. Hall, xivii, 139. 
Cirsted, H. C., Connection between 
Magnetism and Electricity, ii, 
386. 
Phelps, O., machine for facilitating 
excavation of earth, xiv, 167.f 
Pontoppidan, E., [spelt incorrectly 
Pantoppidan, p. 198,] account 
of the sea-serpent, 11, 163. 
322 
TEM 
Saxton, J., letters on electro-mag- 
netism, xxii, 409, 410. 
Silica, see Silex, p. 236. 
Skaquaw, Cherokee, prophecy of, 
lii, 389, [spelt Shaquaw, p. 280. ] 
Snowgauge, xli, 331. 
Solidification of carbonic acid, J. 
W. Bailey, xxxvii, 398. 
Temperature of the Earth, L. Cor- 
dier’s essay on, xv, 109. 
CORRIGENDA TO VOL. XXVIII. 
“ Extreme cold” of 1766—7.—In Volume xxviii, at page 183, are 
quoted observations at New Haven, Conn., on the cold of 1766, 1767, 
stated in ‘* degrees of extreme cold.” ‘This phrase being obscure, was 
then erroneously interpreted to be equivalent to ‘* degrees below zero.” 
An examination of the MS. Meteorological Journal of Pres. Stiles, shows 
that the words ‘extreme cold” were marked on the thermometer 
(which was probably Hauksbee’s) as comprehending a region, on the 
scale, of 20° H., viz. from 85° to 105° ; 100° H. being equal to 0° Fahr. 
Immediately above this region of extreme cold, is a region of 20° 
marked “ frost,” extending from 65° to 85° H. (65° H. being equal 
to +832° Fahr.) The cold at New Haven ascertained from other sour- 
ces was, Dec. 31, 1766, —1° F., Jan. 1, 1767, —84 F., Jan. 2, —93 F., 
which numbers correspond very nearly with the statements in extreme 
cold, when explained on the principles above mentioned. The cold of 
Jan. 5, 1835, at New Haven, still appears to be more intense than any 
previously recorded here. 
CORRIGENDA TO VOL. XXXII. 
East Bridgewater Meteorite——I have examined the East Bridge- 
water, Mass., Meteorite referred to in vol. xxxii, p. 395, of this Journal, 
and find the specimens which were collected to be nothing more than 
old slag from an iron-furnace, which had been spread over the field in 
former times. Some rounded balls of these had been washed up during 
the severe thunder shower during which the fall was believed to have 
occurred. One of the specimens submitted to my inspection was from 
the identical parcel collected by the lad with whom the report origina- 
ted. Its surface was much invested, (and its substance partially pene- 
trated) with rootlets of grasses ! Cuarces U. SHeparp. 
New Hayen, April 22, 1847. 
