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struments; and, with the labor-saving facilities which have been int duced by him in the management of the electropying, it is hoped the e suing year that he will devote one-half his time to making deep-sea ther mometers and to miscellaneous work.

5. PRINTING —Since the first of November, 1849, there have been printe 1,152 sheets of Delaware bay and river, (the map consists of three sheets 25 copies of the small map of New York bay and harbor, 775 of harbos of Cat and Ship island, 800 of Pasquotank, 800 of Hyannis harbor, 50 of the mouth of Chester river, 405 of the harbor of New Bedford, 195 of th: harbor of Nantucket, 50 of New Haven harbor-making in all 4,702 sheets Besides these, there were 746 copies from finished and unfinished plates printed, 594 from the sketch plates, 300 copies of Hatteras inlet, 300 of Cape Hatteras, 300 of Bull's bay, 300 of St. Andrew's shoals, 300 of Beaufort harbor, 300 of Nantucket shoals, 50 of Davis's south shoal, 56 circular protractors and diagrams, scales of shade, and proofs of the plates in the engravers' hands.

6. PUBLISHING.-At the date of the last report, 26 sheets of coast surve maps had been published; since then, three sheets have been addedmaking the number now published 29. This is in addition to replacing the lower sheet of Delaware bay, lost in electrotyping.

Since November, 1849, there have been distributed, by direction of the Treasury Department, and for use in the survey, 360 sheets of the large map of New York bay and harbor, 61 copies of the small map of New York bay and harbor, 60 copies of New Bedford, 60 copies of Annapolis, 60 copies of New Haven, 60 copies of Little Egg harbor, 63 copies of New London harbor, 63 copies of Holmes's Hole and Tarpaulin cove, 63 copies of Oyster bay, 62 copies of the harbors of Black Rock and Bridgeport, 63 copies of Edgartown harbor, 412 copies of Nantucket har bor, 412 copies of the harbors of Cawkin's and Sheffield's islands, 543 copies of the mouth of Chester river, 543 copies of Huntington bay, 543 copies of Captain's island, east and west. The whole number of sheets distributed is 3,428.

There have been turned over to the disbursing officer of the coast sur vey, to be placed with agents for sale, 911 sheets of Delaware bay and river, 180 copies of New Bedford, 90 of Fisher's Island sound, 63 of An napolis, 294 of New Haven, 43 of Little Egg harbor, 83 of Oyster bay 473 of Edgartown, SS of Black Rock and Bridgeport, 200 of mouth of Chester river, 214 of Pasquotank, 74 of Hyannis, 200 of Cat and Ship island-being in all 2,913 sheets of maps.

7. INSTRUMENT MAKING AND REPAIRS.-The alterations, repairs, divid ing, and cleaning required by the instruments of the field and office parties generally have been made, during the past year, under the direction d Joseph Saxton, esq.

Besides these, alterations, &c., have been made to the zenith sector; & 30-inch theodolite has been repaired and additions made to it; a telegraph register made; a 6-inch vertical circle altered into a theodolite; theodolites repaired and altered; metre chains made; heliotropes repaired and ad justed; drawing instruments repaired, and iron plummets made. Respectfully submitted by

A. D. BACHE, Superintendent U. S. Coast Survey.

To the Hon. THOMAS CORWIN,
Secretary of the Treasury.

CONTENTS OF APPENDIX.

1. Distribution of the parties of the coast survey upon the coast of the

United States, during the surveying season, in different parts of the coast,

from November, 1849, to November, 1850.

2. Report of the landmarks of the coast of Oregon from Point Adams

o the boundary of Oregon and California, by Lieutenant W. A. Bartlett,

United States navy, assistant in the coast survey.

2 bis. Letter of the superintendent of the coast survey, applying for the

letail of officers of the corps of Topographical Engineers, with the reply

of the Secretary of the Treasury, enclosing a copy of a letter from the

Secretary of War.

3. Correspondence in relation to surveys of portions of San Francisco

bay, required by the Engineer department for the joint commission.

4. Letter of the Secretary of War to the Secretary of the Treasury,
de-

clining the detail of officers of the corps of Engineers for coast-survey

service, and enclosing a letter of the Chief Engineer, stating the reasons

why the detail cannot be made.

5. Letter of the Secretary of the Navy to the Secretary of the Treasury,

relating to the detail of officers for the hydrographic party, in section IX,

coast of Texas.

6. Extract from the report of W. C. Bond, esq., director of the Cam-

bridge Observatory, to the Superintendent of the coast survey, in rela-

tion to difference of longitude between Cambridge and Liverpool Ob.

servatories.

7. Recommendation in reference to buoys in the Vineyard sound and

Massachusetts bay, by Lieutenant Commanding Charles H. McBlair,

United States navy, assistant in the coast survey.

8. Extracts from the report of Professor A. G. Pendleton, United

States navy, assistant in the coast survey, to the Superintendent, in

regard to the encroachment of the sea on the land on the south side of

Long Island.

9. Report of H. L. Whiting, esq., assistant United States coast survey,

to the superintendent, on the progress of Sandy Hook from 1848 to 1850.

10. Extracts from the report of Lieutenant Commanding Woodhull,

United States navy, to the superintendent, in relation to Prince's and

Diamond reefs, New York harbor.

11. Memorial of the Chamber of Commerce of New York to the

Senate and House of Representatives of the United States, in relation to

rocks in New York harbor, and to obstructions at Hell Gate.

12. Letter of Isaac Newton, esq., president of the People's Line of

steamboats, to the Superintendent coast survey, offering use of line for

party surveying Hudson river.

13. Extracts from the report of S. C. Walker, esq., assistant United

States coast survey, to the Superintendent, on the telegraphic operations

and computations under his charge.

14. Abstract of the report of Lieutenant Commanding S. P. Lee,

United States navy, assistant in the coast survey, to the Superintendent,

on lights, buoys, &c., in the Chesapeake, from the Potomac to the l of the bay.

15. Report of the Superintendent of the coast survey to the Secret! of the Treasury, on Hatteras shoals, with report of Lieutenant C manding Thornton A. Jenkins, United States navy, assistant, &c.

15 bis. Report of Lieutenant Commanding Thornton A. Jenkins Professor A. D. Bache, recommending a bell-beacon and buoy to placed on Hatteras shoals.

16. Report of the Superintendent coast survey to the Secretary of Treasury, in relation to changes in Hatteras inlet, North Carolina.

17. Report of Lieutenants Commanding James Alden and Thom A. Jenkins, in regard to fitness of steamer Jefferson for hydrograp party on western coast, &c.

18. Letter of Lieutenant Commanding J. N. Maffitt, United Sta navy, assistant coast survey, to the Superintendent, in relation to his er amination in the vicinity of St. Helena sound, coast of South Caroli

19. Report of the Superintendent United States coast survey to te Secretary of the Treasury, on the reconnaissance of St. Andrew's shos, coast of Georgia, by Lieutenant Commanding John Rodgers, Unit States navy, assistant coast survey.

20. Notice of surveying marks on the Florida reef, in a letter from Superintendent of the coast survey to the Secretary of the Treasury.

21. Extract from a letter from Lieutenant Commanding James Alde, United States navy, assistant coast survey, to the Superintendent, 2 relation to a light house on Seahorse key, Florida.

22. Letters and reports relating to the stranding of the steamer Hetz near Cape Canaveral, and her subsequent relief, &c.

23. Extract from the report of assistant F. H. Gerdes to the super tendent coast survey, on the reconnaissance of the Florida keys, & 24. Report of the Superintendent coast survey to the Secretary of t Treasury, on the reconnaissance of Cape Canaveral shoals, Florida, Lieutenant Commanding John Rodgers, United States navy, assista coast survey.

25. Report by Lieutenant Commanding C. P. Patterson, United Stat navy, assistant coast survey, to the Superintendent, on beacons and bu in Mobile bay.

26. Report by Lieutenant Commanding C. P. Patterson, on buo and beacons at the entrance to Mobile bay.

27. Report by Lieutenant Commanding C. P. Patterson, on buoys f Cat and Ship Island harbors.

28. Extract from a letter of S. A. Gilbert, esq., sub assistant cos survey, to the Superintendent, communicating the decease of assista R. H. Fauntleroy, at Galveston, Texas.

29. Resolutions in relation to the decease of assistant R. H. Fauntler by the officers of the party of the Superintendent.

Letter of assistant F. H. Gerdes, transmitting to the Superintendent the resolutions of the officers employed in Florida, in relation to the de cease of assistant R. H. Fauntleroy.

30. Report of Lieutenant Commanding W. P. McArthur, United States navy, assistant coast survey, to the Superintendent, enclosing a report of Lieutenant Washington A. Bartlett, United States navy, on the lights necessary for San Francisco bay and its approaches.

31. Report accompanying a reconnaissance chart of the western coast of the United States from Monterey, California, to the mouth of Columbia river, Oregon, by Lieutenant Commanding W. P. McArthur, United States navy, assistant in the coast survey.

32. Sailing directions for the western coast of the United States from Monterey to Columbia river, by Lieutenant Commanding W. P. McArthur, United States navy, assistant in the coast survey.

33. Hydrographic notice of the western coast of the United States from Monterey to Columbia river, islands and rivers, by Lieutenant Commanding W. P. McArthur, United States navy, assistant coast

survey.

34. Report of Lieutenant Washington A. Bartlett, United States navy, assistant coast survey, to the Superintendent, in relation to a light-house at Cape Hancock or Disappointment, entrance to Columbia river.

35. Report of Lieutenant Commanding W. P. McArthur, United States navy, assistant coast survey, in relation to lights at Cape Flattery and New Dungenness, Oregon.

36 Report of Lieutenant Washington A. Bartlett, United States navy, assistant in the coast survey, in relation to the draught of vessels which can pass through the south channel into Columbia river.

37. Extracts from the report of Brevet Major Isaac I. Stevens, Corps of Engineers, assistant, in charge of the coast survey office, to the Superintendent.

38. List of maps engraved and engraving at the coast survey office. 39. Statistics of the coast survey to January, 1850.

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.

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