APPENDIX No. 1.

Distribution of the parties of the coast survey upon the coast of the United States, during the surveying seasons, in the
different parts of the coast, from November, 1849, to November, 1850.

3 Triangulation and astro- S. C. Walker, assistant; L. nomical work. F. Pourtales, sub-assistant.

season.

Verification work on south side of Long Island,
from Ketchabonneck to Neapeague; examination
of Prince's and Diamond reef, &c., New York
harbor, part of season.

Examination of specimens of bottom of sea in sec-
tion II.

Continuation of triangulation of Chesapeake to
Wolftrap station; Mr Gilbert assistant from
August to close of September.
Continuation of triangulation from Chesapeake to
capitol and observatory, Washington; astro-
nomical and magnetic observations at three sta.
tions.

Line from Webb's to Hill's opened, &c., early
part of season.

Triangulation and astronomical observations at
Seaton station; telegraphic operations for differ-
ence of longitude of Charleston and Washing
ton, &c.

Continuation of triangulation of outer side of East-
ern Shore peninsula, from work of last year, to
Cedar island, Virginia.

Eastern shore of Maryland; western shore of Virginia, between the Potomac and Rappahannock.

raphy.

Hydrography....

George D. Wise, assistant....

J. B. Glück, assistant...
Captain A. A. Humphreys,
United States topographical
engineers, assistant.
Lieutenant Commanding S.
P. Lee, United States navy,
assistant; Lieut. Command'g
B. F. Sands. (Double party.)

Main and secondary trian- Captain A. A. Humphreys,
gulation.
United States topographical
engineers, assistant.
Secondary and tertiary J. J. S. Hassler, assistant.
triangulation and topog-

Tertiary triangulation...
Tertiary triangulation and
topography.
Hydrography.

....

Examination of Patapsco; topography of outer
shore of peninsula of Eastern Shore to Lonesome
Hill, Virginia.

Verification work on Patapsco, part of season.
Inspection of work on Patapsco.

Hydrography of outer coast from Green Run,
Maryland, to Lonesome Hill, Virginia; hydrog-
raphy of Chesapeake, from work of last year, to
line Windmill Point, Nandua Cr.; sailing direc-
tions for Chesapeake, &c.; list of buoys, &c.,
for bay north of Potomac.

Base on Bodie's island, connected with main trian-
gulation; verification of tertiary triangulation of
ocean shore towards Hatteras, part of season.
Secondary triangulation of Currituck sound and
tertiary of Chowan, Cushai, and Roanoke rivers
continued; drawings completed of topography of
Albemarle sound, &c.

From Bodie's island base, south, to near Hatteras
inlet.
Triangulation of Beaufort harbor made and shore-
line traced,

Off-shore soundings (deep sea) from capes of the
Chesapeake to Cape Hatteras; hydrography of
Hatteras shoals and cove; examination of Hat

terna inlet, gulf stream; work in this and says

A themarte and Granton sounds,

Do.

Lieut. Command'g Richard Wainwright, United States

navy, assistant.

Lieutenant Commanding J.
N. Maffitt, United States
navy, assistant.

Hydrography of Albemarle and Croaton sounds, of Alligator and North rivers; reconnaissance of Hatteras inlet.

Hydrographic reconnaissance of Beaufort harbor,
North Carolina.

Measurement of base..... A. D. Bache, superintendent; Measurement of base on Edisto island completed.

Main and secondary tri-
angulation, and astro-
nomical and magnetic
observations.

Secondary triangulation..

C. O. Boutelle, assistant;
and C. P. Bolles, sub-assist-

ant.

C. O. Boutelle, assistant; Geo.
Davidson, sub-assistant.

Astronomical and magnetic observations at north
end of Edisto base connected with main triangu-
lation commenced; secondary triangulation of
North Edisto inlet made.

C. O. Boutelle, assistant; C. Measurement of preliminary base near Savannah;
P. Bolles, sub-assistant.

Lieutenant Commanding J. N.
Maffitt, United States navy,
assistant.

Lieutenant Commanding John
Rodgers, United States navy,
assistant.

A. D. Bache, superintendent.
F. H. Gerdes, asssistant.

Astronomical and mag. J. E. Hilgard, assistant..
netic observations, and
secondary triangulation.

Secondary triangulation and topography.

Hydrography.

H. L. Whiting, assistant; and
J. H. Adams, sub-assistant.
(Double party.)

Lieutenant Commanding John
Rodgers, United States navy,
assistant.

secondary triangulation from north end of Hutch-
inson's island to Elba island, Savannah river.
Hydrography of Charleston harbor and approaches;
reconnaissance off St. Helena sound.

Reconnaissance of St. Andrew's shoals.

Inspection of progress of work.

Reconnaissance of Florida Keys and of part of the
main from Cape Florida to the Tortugas com-
pleted; preliminary base near Cape Florida meas-
ured; reconnaissance for base near Cape Sable
made; reconnaissance near Cedar Keys com-
menced.

Observations for latitude and azimuth; magnetic
declination, &c., at Key Biscayne; preliminary
base near Cape Florida measured; triangulation
of Key Biscayne bay and of Florida reef adja-
cent commenced, (part of season.)
Triangulation near Key Biscayne continued;
topography of Key West and of adjacent keys
executed.

Reconnaissance of Cape Canaveral shoals execu-
ted; hydrography of Key West harbor and ap-
proaches nearly completed.

4

Hydrography

Lieutenant Command'g James

Alden, United States navy,
assistant.

F. H. Gerdes, assistant...

Reconnaissance of Cedar Keys; recommendation for a light-house.

Primary triangulation continued to Chandeleur islands, (part of season.)

C. M. Eakin, assistant; S. A. Triangulation of part of Mobile delta; connexion
Gilbert, sub-assistant.

W. E. Greenwell, assistant.

Lieutenant Command'g James
Alden, United States navy,
assistant.

Main and secondary tri- R. D. Cutts, assistant; S. A.
angulation.
Gilbert, sub-assistant.

of Mobile bay and outer coast made; of Missis-
sippi sound and adjacent bays continued westward
into Lake Borgne.

Topography of west shore of Mobile bay and of
delta completed; of north shore of Mississippi
sound continued westward of Pascagoula.
Hydrography of Mobile delta completed; of Mo-
bile bay nearly completed.

Main and secondary triangulation continued west,
ward and southward from Galveston bay; pre-
liminary base on Galveston island measured;
triangulation of East bay continued.

Under instructions to continue foregoing work.

Topography of Galveston lower bay completed,
and of western shore of upper bay.
Hydrography of approaches to Galveston harbor
nearly completed."