194 Intelligence and Miscellanies. 
ar Delafield presented Arragonite from New-Bruns- 
k, N. J.; a locality not hitherto noticed. 
Dr. Torrey made a report on a specimen of what is termed 
Marle in New-Jersey. No lime whatever is found in its and 
hence its name is obviously improper 
A gigantic specimen of the Dads, Palm, with its sterile 
flowers, was presented by Dr. Hosack, and seeds from Ma- 
tanzas by Mr. R Otis 
Dr. Mitchill read an stain of a work entitled “* Consid- 
erations sur l’enlevement, &c. des chevaux mort.’ 
Mr. Halsey concluded his course of Lectures on Botany. 
ril—Dr. ‘Torrey communicated a paper by Dr. Clarke 
containing an analysis of a substance nearly allied to. Jet, 
very abundant in the Newark meadows. wT is highly 
mable. It has been called “extract of peat’ by Dr. “Mac 
culloch, who considers it as a deposit from the watery sud 
tion of peat. 
Mr. De Kay Seiad a paper on a singular shal GonvoHatGh 
observed in the teeth of the Arctomys monax. In this indi- 
vidual there had been a caries of the lower jaw, which shia 
prevented the growth of the incisor on that side. Its antag- 
onist in the upper jaw having nothing to oppose it, had con- 
tinued to be developed until it had described more than one 
complete spiral revolution 
A new mineral, the Fhagtnras from Haytor, Daves: 
and specime ns of Retinasphaltum, from Bovey Heathfield, 
(Eng.) were ‘present ted by Mr. Fostheratnnehvatic 
_ Dr. Torrey presented a specimen of Asphalium, from a 
marl-pit twenty miles south of Trenton, the first locality no- 
ticed in the United States. 
of sri the same temperature. In a tour ieee the Erie 
we made some trial with ice-water, and cold spring water, 
on those two very hot days, the 27th and 28th of last June. 
We wepertencéd as much difference in the effect as has ust- 
n Segasas when the difference in temperature 
was scarcely y perceptible by the hand or tongue.. "Phese tr 
