Слике страница
PDF
ePub

in bridges, culverts, and parapet walls; cutting and laying three thousand six hundred and fifty-four feet (running measure) of heavy coping; and relaying twelve hundred and seven feet of old coping.

There remains to be executed at the present time, to complete the work, the contracts for the last coat of metal, now in rapid progress, making up the side roads, and opening thoroughly the water ways, that is now under contract to be finished by the 30th November, and the masonry of the bridges as before stated.

All of which is respectfully submitted.

To Brig. Gen. C. GRATIOT,
Chief Engineer.

R. DELAFIELD,

Capt. of Engineers.

ANNUAL STATEMENT exhibiting the progress made in the repairs of the Cumberland Road east of the Ohio, to the 30th September, 1834, as also the progress made during the year ending 30th September, 1835, and the appli cation of the balance of the appropriation remaining on hand on the 30th September, 1835.

[blocks in formation]
[graphic]
[ocr errors]
[ocr errors]
[ocr errors]

Number of culverts constructed on

Number of places where the grade has been reduced,

bridges, over Dunlap's creek,

25,000 00

[blocks in formation]

For office rent, Due for masonry constructed on the 6th division,

For clerk-hire and stationery,

Assistants,
For forage and livery of horses used by Engineers and

For commutation for fuel and quarters for the officers

of the army on this duty,

For salaries of superintendents.
For cast iron mile posts,

For postage and transportation of Engineers from other
public works,

For fencing along the precipices, depositing a supply of
metal along the road, and unforeseen and contingent
expenses in Pennsylvania and Maryland,
For putting on the last stratum of metal on five miles
of the 7th division, and repairing the masonry of
parapets, building culverts in place of five large and
deep hollow ways, making up side roads, and repair
of the masonry in Wheeling, in Virginia,

Amount available on the 30th September, 1835.

[blocks in formation]

19,623 33

16,091 64

$179,792 93

Amount in the hands of Merchants' and Manufacturers' Bank at Pittsburg,
Do

do

do

Bank at Wheeling,

[blocks in formation]
[blocks in formation]
[graphic]

RICHARD DELAFIELD,

Gen. C. GRATIOT, Chief Engineer:

R.

PHILADELPHIA, Nov. 23, 1835.

SIR: I have the honor to submit the following statement, showing the results of a portion of the observations made during the last season, for determining the latitude of certain points connected with the settlement of the northern boundary of Ohio, as required by the act of July 14th, 1832.

The results are deduced from taking the mean of a number of observations on twenty fixed stars. The very near coincidence in the deductions made from each observation on the saine star; as also their accordance with other results, obtained from a series of observations on other stars. which have also been calculated; induce me to believe, that the latitudes of the several points are true to the nearest second.

1. The most southern extreme of lake Michigan is in latitude 41 deg. 37 min. 07 sec. N.

The greatest difference, arising from a comparison of the observations, being 03.05 sec. and the greatest difference from the mean result, 01.17 sec.

2. From observations upon a portion of the same stars, made on the Maumee river, near the east line, recognized as Fulton's, where that line crosses the Maumee, and referred to said line, the latitude is found to be 41 deg. 37 min. 08 sec. N. or about 101 feet north of the parallel tangent to the south bend of lake Michigan.

This result is obtained from a mean of five determinations; the greatest difference found, on comparing the observations, being 01.67 sec. and the greatest difference from the mean result, 00.98 sec.

3. The north cape of the Maumee bay is in latitude 41 deg. 44 min. 07 sec. N.

This result is obtained from a series of observations made on fourteen different stars, the greatest difference, as before, being 02.56 sec. and the difference obtained, from a comparison with the mean result, being 01.50 sec.

The observations from which the above latitude is deduced, were made on Turtle island; the difference of latitude having been determined trigonometrically.

The latitude of the astronomical station on Turtle island, Maumee bay is 41 deg. 45 min. 12 sec. N.

4. For the determination of the latitude of the most southerly point o the boundary heretofore established, between the United States and Canada in lake Erie, two positions were chosen :

The first, 2 miles east of Huron, Ohio, on the margin of the lake, and in the immediate neighborhood of its most southwardly bend. The resul of the observations made at this station, fixed the latitude of the mos southerly bend of Lake Erie at 41 deg. 22 min. 54 sec. N.

The second position was taken at Point Pele, Canada, nearly due nort of the first position. From a series of observations made at this station, is found that the southern extreme of Point Pele is in north latitude, 41 de 53 min. 59 sec.; and further, that it appears from the results of the surve and triangulation, connecting this station with Point Pele island, th Point Pele, when surveyed under the orders of the commissioners appoint to settle the position of the territorial line between the United States a Great Britain, under the treaty of Ghent, projected much further into t lake than it does at present; and that, as near as it can be ascertain

from a comparison of the two surveys, this point in 1818 was in north latitude 41 deg. 52 min. 24 sec.

The latitudes of the two last mentioned points, furnish the data from which the most southwardly point of the territorial boundary, in Lake Erie, must be determined, because "a line along the middle of Lake Erie" must make its greatest southing between these two points.

Before this latitude can be determined, however, the principle which governs in its location must be established. A middle point on the meridian, between the two shores, is found to be in latitude 41 deg. 38 min. 26.5 sec. north, from a portion of the data given above. A middle point on the same meridian, in 1818, was in latitude 41 deg. 37 min. 39 sec. north, deduced from another portion of the same data; now, a line dividing the lake into two equal parts, and perpendicular to lines radiating from Point Pele, is found to be in north latitude 41 deg. 33 min. 15 sec. In 1818 it is found in latitude 41 deg. 32 min. 44 sec.

It will be observed, that in both cases, under the first construction of the language used in the decision of the commissioners, relating to the territorial boundary, the due east line from the south bend of Lake Michigan, will pass south of said territorial line; and that, under the last construction, in both cases, the territorial line will be intersected by a line running due east from the south bend of Lake Michigan.

For the longitude of the several points abovementioned, I have the honor to refer to my report furnished in January, 1834.*

I have the honor to be,

Very respectfully,

Your obedient servant,

A. TALCOTT, Captain of Engineers.

*A TABLE of the latitude and longitude of certain points required to be determined by the law of July, 1832, with a view to the adjustment of the Northern Boundary of the State of Ohio.

[merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][ocr errors][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]
« ПретходнаНастави »