454 Miscellaneous Intelligence. 
number of these trilobites. They were sent to Prof. J. Hall in 1847 for 
determination who gave them the name Conocephalus, the same genus 
to which Mr. Billings now refers them, At that time the precise position 
of the Conocephalus was not known. Nor was Prof. Hall able to give 
more definite information respecting them in 1858 when I showed him 
the specimens again. : 
These trilobites are noticed on pages 339 and 340 of our Third Report 
on the Geology of Vermont, which will be ready shortly for distribution. 
Amherst, Mass., Oct. 23d, 1861. ; 
[For Prof. Adams’s own notice of the Champlain Division of the Ta- 
conic Rocks, see this Journal, [2], v, 109. We understand from Mr, Hunt 
that Mr. Billings has, since the date of his paper, here quoted by Mr. 
Hitchcock, seen Prof. Adams’s remarks before the American Association, 
&c., at Boston in 1847, and quotes them in a paper now in press, indeed 
Mr. Billings has said the same to us in a late letter—Ebs. s 
4. Atlantic and Pacific Telegraph—The 28th of October witnessed 
the successful completion of the telegraphic connection of the Atlantic 
and Pacific Oceans by way of New York and Saint Louis to San Fran- 
accomplish this connection. We can then hope to receive our European 
and Asiatic news by way of the Pacific! ne 
5. Nicotine.—It is stated that the tobacco crop of the world is 250 
millions of kilogrammes (= 5,512,500 Ibs. av.). Schlosing, as senty 
quoted, this Journal, [1], iv, 273, found in various tobaccos an average 
ut 5 per cent of nicotine. ; : 
It is clear therefore that about twelve and a half imillions of kilo- 
grammes (==2,756,250 lbs.) of this poison are annually produced As 
. of nicotine very slightly exceeds that of water, this quantity 
would fill nearly 100,000 wine barrels, and would give twelve and a ~ 
grammes (= 293-025 grains) to every man, woman and child on the 
living creature on the face of the globe if its proportion was administered 
in a single dose. 
6. Geological Survey of Wisconsin.—The report of the Survey of this 
State is in press under the supervision of Prof. James Hall. This volume, 
of 500 pages or more, will contain a chapter on the general geology, 
