Address before the Association of American Geologists. 235 
as peculiarly American, for I'am not aware that any general sur- 
vey of a large district, had been ordered in any other part of the 
world, till after it had been done in this country. At any rate, 
sure I am, that it was entirely original with those wlio introduced 
it here. North Carolina has the honor of having first directed a 
survey of her territory. This duty was committed to Prof. Olm- 
sted, who made a report of one hundred and forty one pages, in 
1824-and 1825, upon the economical geology of the state. The 
year following, South Carolina gave a similar commission to Prof. 
,Yanuxem, whose report was published only in the newspapers. 
- An interval of five or six years succeeded, before Massachusetts 
engaged in the work. In 1830, she slang a survey ;—in 
1832, an annual. report of seventy pages, and in 1833, one of 
seven hundred pages, with a second edition in 1835, were pub- 
lished. In 1837, a re-survey was directed; in 1838, an an- 
nual report of one hundred and thirty nine pages was printed, 
and the final report of eight hundred and forty quarto pages with 
fifty five plates, is just completed. ‘Tennessee began the oak 
only two or three 
Prof. Troost, who has. published five annual reports Ccomnyhlen 
of thirty to eighty pages, with a geological map of the state. In 
Maryland, the work was begun in 1834, and Prof. Ducatel was 
appointed to execute it, who has made seven annual reports of 
about fifty pages each, with numerous maps and sections. The 
survey of New Jersey was ordered in 1835; in 1836, Prof. Henry 
D. Rogers, the commissioned geologist, made asreport of one hun- 
dred and eighty eight pages, with extensive sections; and in 
1840, his final report of three hundred and one pages, with a ge- 
ological map-of the state and sections.. The stateof New York 
was divided into four sections ; and Profs. Pag aye Mather, and 
Emmons, with Mr. James Hall, as a i pale- 
on ist, and Prof. L. C. Beck. as..chemist, were. app 
— survey them. Up to the present time, they have made 
five reports; the first of two hundred and twelve pages, the se- 
cond of three hundred and eighty four pages, the third of three 
hundred and fifty one. pages, the fourth of four hundred and 
eighty four pages, andthe fifth of one hundred and eighty four 
pages. The work i is now nearly completed; and the gentlemen 
eroceeniat The survey of. Vir 
