Relics of Dr. Rae's Expedition, 1845-'47. (Brought back by Hall.)

22. Pieces of wood, iron, canvas, clay pipe, from near Fort Hope.

Articles belonging to Joe Ebierbing and Hannah.

23. Sealskin coat.

24. Map made by Joe.

25. Inomit ladies' boots.

26. Skin of a deer shot by Hannah. 27. Skin of a musk-ox shot by Hannah. 28. Shoes worn by Hannah's child Sylvia.

Relics of Sir John Franklin's Expedition, 1845. (Brought back by Hall.)

1. Silver watch cases; silver fork; table, desert, and tea spoons; scissors.

2. Piece of azimuth compass; tin vessel for records.

3. Brass tubing; gimlet; knob; bullet; cylindrical lead.

4. Needle; button of naval uniform; coat lining.

5. Barometer.

6. Britannia dish; pickle jar worn by

ice or snow.

7. Bottle containing hair and fragments of clothing of Franklin's men.

8. Piece of chair from Franklin's vessel. 9. Probe, file, and strip of copper. 10. Instrument box; piece of desk. 11. Arrows.

12. Arrowters (snow-beaters). 13. Sledge bars.

14. Wedge, chisel, wood (Repulse Bay, Whale Point, Fox Channel).

15. Canisters of roast beef and carrots. 16. Canvas; wood from Gifford River.

William Bradford's Expedition in the Panther, 1869.

1. Photographs of Arctic scenery. 2. "The Land of Desolation."

(Objects on the southeast side of case.)

VI.-Third Expedition of Capt. C. F. Hall. (The Polaris, 1871.)'

1. Log of the Polaris.

2. Journal of Capt. S. O. Budington. 3. Rough log of the scientific corps.

4. Journal of R. W. D. Bryan, astronomer of the Polaris; of H. Siemans; of J. B. Mauch; of John Herron; of H. Hobby.

5. Sketches by E. Schumann, engineer. 6. Plan of the Polaris as fitted for the Arctic Expedition by Naval Constructor B. F. Delano.

7. The Polaris at the Washington navyyard, June, 1871,

8. Hall's inkstand.

9. Tip of a walrus tusk.

10. Note-book used by Captain Hall in his last sledge-journey, October 10, 1871.

11. Photograph of Joe Ebierbing. 12. Photograph of Hannah.

Articles belonging to Capt. G. E. Tyson. 13. Note-books containing his diary kept on the ice from October, 1872. to April, 1873; cover; pencil.

14. Walrus tusk.

Articles belonging to R. W. D. Bryan, astronomer of the Polaris.

15. Shotgun.

16. Celsius and Fahrenheit thermometers. 17. Pieces of the flag of the Polaris. 18. Sealskin mittens used while observing; cap; eider-down wristlets; watch-guard.

19. Bag of tobacco and of tea used while in the boats; coins; ivory articles manufactured by Etah Esquimaux; brass tokens marked "Christmas, 1871-latitude 81° 38'." Chronometer key; stone with lichens;

fossils from Thank God Harbor; hair from the tips of whalebone slabs; oil silk for records; pipe. 20. Collection of minerals and fossils by Dr. Emil Bessels, chief of the scientific corps of the Polaris Expedition (79 specimens).

21. Earth from Hall's grave.

22. Hall's grave.

23. Arctic flora.

Articles brought back to the United States on the U. S. S. Juniata (relief ship).

CLASS K.-NAUTICAL ALMANAC PUBLICA

TIONS.

1. The American Ephemeris and Nautical Almanac for the years 1855 to 1878. 24 vols.

2. The Almanac for the Use of Navigators for the years 1876 to 1879. 4 vols.

3. Tables of the Moon.

4. Tables of Mercury and Venus. 5. Tables of Melpomene, Economia, Harmonia, and Parthenope.

6. Star Tables of the Americau Ephemeris. CLASS L.-RELICS.

Relics of Capt. Paul Jones, of the Continental Navy.

1. Chart-Cooke and Clerke.

2. Part of chart of the world, 1768-'80. 3. Atlas to Vancouver's Voyage. 4. Loose leaves with drawings attached to them, and two loose drawings. 5. Capt. John Paul Jones's log-book, 1779-'82.

6. Dutch official copy of the flags borne by Jones's ships while in the Texel, October, 1779.

7. Official copy of John Paul Jones's commission.

8. Fac-simile of John Paul Jones's commission.

9. Blank commission of John Paul Jones, signed by John Hancock, President of the Continental Congress. Journal of the French fleet, 1781-'82, while under the command of Count de Grasse.

10.

20. Cane of narwhal's horn, the head of walrus tooth.

28. Hide rope (4 strands, 6 inches).

strain, 20,000 pounds.

7. American hemp rope (tarred, 4 strands, 4 inches). Breaking strain, 16,200 pounds.

8. Manila rope (4 strands, 5 inches). Breaking strain, 16,700 pounds.

30. American hemp line (untarred, 15 thread).

31. Manila rope (3 strands, 1 inches). 32. American hemp line (untarred, 6 thread).

33. American hemp line (untarred, 18 thread).

10. Manila rope (4 strands, 4 inches). Breaking strain, 10,700 pounds. 11. American hemp rope (tarred, 3 strands, 5 inches). Breaking strain, 22,500 pounds.

12. Russia hawser (4 inches). Breaking

strain, 13,400 pounds.

13. Manila rope (3 strands, 5 inches). Breaking strain, 14,000 pounds.

14. Manila hawser (4 inches). Breaking strain, 10,700 pounds.

15. American hemp rope (tarred, 3 strands, 4 inches). Breaking strain, 14,400 pounds.

16. Manila rope (3 strands, 4 inches). Breaking strain, 10,700 pounds. 17. Manila rope (4 strands, 3 inches). Breaking strain, 8,200 pounds. 18. Russia hemp rope (tarred, 4 strands, 3 inches). Breaking strain, 7,200 pounds.

19. Manila rope (3 strands, 3 inches). Breaking strain, 6,000 pounds. 20. American hemp rope (tarred, 3 strands, 3 inches). Breaking strain, 7,200 pounds.

21. Manila rope (4 strands, 34 inches). Breaking strain, 8,200 pounds. 22. Russia hemp rope (tarred, 4 strands, 2 inches). Breaking strain, 5,000 pounds.

23. Manila rope (3 strands, 24 inches). Breaking strain, 4,000 pounds.

24. American hemp rope (tarred, 3 strands, 2 inches.) Breaking strain, 3,200 pounds.

25. Manila rope (3 strands, 2 inches). Breaking strain, 2,700 pounds.

26. Manila rope (3 strands, 14 inches). Breaking strain, 1,700 pounds.

35. American hemp line (untarred, 12

thread).

36. American hemp line (untarred, 9 thread).

CLASS C.-WIRE ROPES.

1. Wire rope (6 inches). 2. Steel-wire hawser (4 inches). 3. Wire rope (5 inches). 4. Wire rope (4 inches). 5. Wire rope (34 inches). 6. Wire rope (3 inches). 7. Wire rope (24 inches). 8. Wire wheel rope (2 inches). 9. Wire rope (2 inches), 10. Wire rope (14 inches). 11. Wire rope (14 inches).

12. Wire rope jib net (§ inch). 13. Copper-wire lightning conductor. CLASS D.-CHAINS, SHACKLES, BUOYS,

1. Jew's harp.

ETC.

2. Club link and shackle.

3. Devil's claws.

4. Mooring swivel.

5. Mooring swivel.

6. Swivel.

7. Swivel.

8. Fish-hook for anchor.

9. Boat anchor.

10. Boat anchor.

11. Club link and shackle. 12. Drying stove.

13. Grapnel.

14. Grapnel.

15. Grapnel.

16. Grapnel.

17. Grapnel.

18. Grapnel.

54. Set of sailmaker's thimbles.

55. Set of composition thimbles. 56. Chain hooks.

57. Cork jacket.

58. Specimens of chain iron broken in testing at Washington navy-yard.

59. Model of a link-bending machine for bending iron chain cable links, tackle hooks, connecting shackles, &c. (In use at the navy-yard, Washington, D. C.)

Photograph of the machine. Printed report of the Naval Committee of the House of Representatives, February 11, 1870.

12 leaden links to be used in model, showing the mode of working the machine.

18. Cotton canvas, No. 9.

19. Cotton canvas, No. 10.

20. Light cotton canvas (Raven's).

21. Heavy cotton canvas (Raven's). 22. Bag canvas.

23. Cot canvas.

24. Hammock canvas.

CLASS F.-HOISTING GEAR.

1. Tackle and runner (1 to 4).

2. Single Spanish burton (1 to 3).

3. Double Spanish burton (1 to 5).

4. Burton (1 to 9).

5. Water whip (1 to 2).

6. Topsail halyards (1 to 10). 7. Lift jigger (1 to 3).

8. Burton (1 to 8).

9. Watch tackle (1 to 3).
10. Bell purchase (1 to 8).
11. Whip (1 to 1).
12. Whip (1 to 2).

13. Whip and runner (1 to 2).
14. Gun tackle purchase (1 to 2).
15. Rigging luff (1 to 3).
16. Luff tackle (1 to 3).
17. Double purchase (1 to 4).
18. Old jeer purchase (1 to 5).

19. Top burton (1 to 3). 20. Sail tackle (1 to 5).

21. Royal halyard purchase (1 to 2). 22. Burton (1 to 16).

CLASS G.-TESTS OF IRON.

1. Section of connecting rod of hydraulic

yard, Washington. In use thirtyfive years, and subjected to strains equal to 300,000 pounds, and to recoils incidental upon the rupture of the test specimen. Illustrating the action of strains and vibrations in producing crystallization.

2. Coarse granulous iron, of fair tensile strength, but with slight transverse strength, and no resilience. Specimens broke by blows of from 300 to 500 pounds delivered on a scored circle with a wedge-shaped hammer. This iron is unsuitable for any purpose where it is exposed to sudden or transverse strains.

3. Chain iron made from condemned scrap iron by a process discovered by Commander L. A. Beardslee, U. S. N. These specimens were broken by from three to six blows, of 3,000 pounds each, with a wedge-shaped testing hammer.

4. Test of bars of same iron as No. 3. This lot of iron not scored; struck in the center from eight to fifteen 3,000pound blows; then closed under an 8-ton steam hammer.

5. Tests of 14-inch bars made by Commander L. A. Beardslee's process. All bent to their present shape by heavy blows. The piece tied into an overhand knot was pointed while hot, then allowed to cool, and hauled taut by tension. The screw bolts were struck in the center, the bearings being placed at junction of the threads with a solid iron. 6. Collection of ends of bars of various makers which have been broken off

by sledge blows after having been nicked with cold chisel, the highest number of blows struck being one hundred and nineteen, and the lowest number of blows one.

pulled asunder by hydraulic power, illustrating the increase of tensile strength and elastic limit per square inch as the bar decreases in diameter. The average elongation is 23 per cent., and the average contraction of area 45 per cent.

(a) 2-inch bar: Elastic limit 24,480 pounds per square inch; tensile strength 47,687 pounds per square inch.

(b) 14-inch bar: Elastic limit 21,068 pounds per square inch; tensile strength 49,089 pounds per square inch.

(c) 14-inch bar: Elastic limit 26,640 pounds per square inch; tensile strength 49,714 pounds per square iuch.

(d) 1-inch bar: Elastic limit 31,050 pounds per square inch; tensile strength 50,912 pounds per square inch.

(e) 14-inch bar: Elastic limit 32,910 pounds per square inch; tensile strength 51,455 pounds per square inch.

(ƒ) 1 inch bar: Elastic limit 32,400 pounds per square inch; tensile strength 52,854 pounds per square inch.

(g) 14-inch bar: Elastic limit 29,700 pounds per square inch; tensile strength 51,989 pounds per square inch.

(h) 14-inch bar: Elastic limit 28,260 pounds per square inch; tensile strength 52,153 pounds per square inch.

(j) 1-inch bar: Elastic limit 28,800 pounds per square inch; tensile strength 52,698 pounds per square inch.