ison impracticable. The station Sitka, in Russian America, is the next place discussed north of Washington Territory. I find for it the approximate formula,

D=-28°12-0·0607n-0·00025n2.

It depends for its latest declination (1858) on the tabular value assigned by Mr. Evans on his late map of the lines of equal magnetic variation reduced to 1858.

Record of all observed declinations made use of in the above paper, not heretofore published in the U. S. Coast Survey reports.

The following record, containing only additional observations, we have to consult the preceding reports of 1854,* 1855-'56, and '58, if we desire to collect all results which may have been used at any one station. The stations are arranged geographically, commencing with the northern and eastern stations and concluding with the stations on the western coast. D= observed declination.

D=16° 00′ W. P. Bressau, Hansteen's Erdmag's, Bar

1819, Sept.,

1843, July,

9 25"

1857, Aug.,

7 37"

Quebec, Canada.

1649,

1763,

1775,

9 42"

9 22"

Becquerel, traité du magnetisme.

Kent, Becquerel traité du magnetisme.

Capt. Lefroy.

66 66

66

Chas. A. Schott, Asst. U. S. Coast Survey.

report, pp. 326-337.

Prof. Benedict.

J. Johnson, Thompson's Hist. of Vermont. Dr. J. Locke, Smiths. Contrib. to Knowledge, vol. iii, 1852.

D= 7° 45′ W. J. Winthrop, Sill.'s Journal, xxxiv, 1838,

8 30 "

Prof. Loomis's collection.

J. F. DeBarre's Atlantic Neptune, London, 1781.

The table of the declinations in that report is reprinted and enlarged in the report of 1855.

See also C. S. report of 1856,
Portsmouth, N. H.

1771,

1771,

1775,

1859, July,

Dr. J. Locke, Smiths. Contrib. to Knowledge, vol. iii, 1852.

Chas. A. Schott, Asst. U. S. Coast Survey. p. 215.

D= 7° 46′ W. Holland, Sill.'s Journal, xxxiv, 1838,
Prof. Loomis's collection.

7 48"

7 45"

11 15"

See also C. S. report of 1856,
Rutland, Vt.

1789, April, D=

Holland.

J. F. DeBarre's Atlantic Neptune.

Chas. A. Schott, Asst. U. S. Coast Survey. p. 215.

7° 03′ W. Dr. Williams, Sill.'s Journal, xvi, 1829.

6 04 "

1810, May,

1811, Sept.,

1859, July,

Cambridge, Mass.

6 01
9 49"

66

Chas. A. Schott, Asst. U. S. Coast Survey.

of 1855, also C. S. report, 1856, p. 222. Dr. J. Locke, Smiths. Contrib. to Knowledge, vol. iii, 1852.

W. C. Bond (in a letter to Supt. of C. S.)

Karl Friesach, Imp. Acad. of Sciences,
Vienna, vol. xxix, 1858.

still require examination.

J. F. W. DeBarre's Atlantic Neptune.
Dr. Williams, Sill.'s Journal, xxxiv, 1838,
Prof. Loomis's collection.

Chas. A. Schott, Asst. U. S. Coast Survey.

1847, Nov., D= 7° 35′ W. Regent's report (geological survey).

1856, Sept.,

8 35"

Karl Friesach, Imp. Acad. of Sciences,
Vienna, vol. xxix, 1858.

See also C. S. report, 1855, pp. 328–337, and C. S. report, 1858, p. 191.

Oxford, N. Y.

The following observations marked E. B. W. C. are from a letter of Mr. E. B. W. Call to the Superintendent C. S. Dec. 22, 1858.

See C. S. report of 1855, pp. 320, 321, 333, and 337, also C. S. report,

1856, p. 217.

Philadelphia.

See C. S. report of 1855, pp. 313, 314, and 337.

Hatboro', Pa.

See C. S. report of 1858, pp. 192, 193, 194, and 195.

Baltimore, Md.

1808,

D= 0° 10' to 15' W. D. Byrnes, vol. xviii, 1830, Sill.'s
Journal.

See also C. S. report, 1856, pp. 219, 227, also C. S. report, 1858, p. 191.

Washington, D. C.

See C. S. report, 1858, pp. 195, 196, 197.

Williamsburg, Va.

1694,

1780,

1809,

1856, Aug.,

D= 5° 00′ W. Sill.'s Journal, vol. xxxiv, 1838, Prof.

Loomis's collection.

66

Charleston, S. C.

66

Deduced from observations at Petersburg,
Old Point Comfort, and Norfolk.

1857, April, D= 1° 56′ E. Derived from observations at Savannah in

1852 and 1857.

See C. S. report, 1855, pp. 322, 323.

Savannah, Ga.

1817,

1838,

1839,

D= 4° 00' E. Becquerel traité du magnetisme.

See also C. S. report, 1856, p. 220, and C. S. report, 1858, p. 192.
Mobile, Ala.

See C. S. report, 1855, p. 323, also C. S. report, 1858, p. 192.

Havana, Cuba.

See C. S. report, 1855, p. 324.

1857, Jan., D= 5° 15' E.

Jamaica, W. Indies.

Karl Friesach, Imp. Acad. of Sciences,
Vienna, vol. xxix, 1858.

1732, D= 6° to 6° 05' E. J. Harris at Black river, in March and

April. Phil. Trans., 1733.

J. Leard, map of Port Royal.

De Mayne,

1857, March,

Panama, New Granada. 1775, Nov., D= 7° 49′ E. 1791, Dec.,

Gen. Sabine's isogonic map of the Atlantic

Ocean.

Karl Friesach, Imp. Acad. of Sciences, Vienna, vol. xxix, 1858.

Encycl. Brit.

66

7 49 " 8.00"

66

7.00"

7 02 "

6 55"

Hall, Becquerel's traité du magnetisme.

Sir E. Belcher.

Major Emory (Mexican Bound. Survey). 223.

J. Harris, Phil. Trans. R. S. anno 1728.
Encyc. Brit., 7th edition, 1842.

66

Don Ulloa, Encyc. Brit.
Malony.
Wise.

See also C. S. report, 1856, p. 214.

San Diego, Monterey, San Francisco and Cape Mendocino, California, and for Cape Disappointment, Washington Territory, see C. S. report, 1856, pp. 228 to 235.

ART. XXX.-Caricography; by PROF. C. DEWEY.

(Continued from vol. xxviii, p. 232, Second Series.)

No. 260. Carex argyrantha, Tuckerman.

Spica composita; spiculis 4-8, ovato-rotundis vel obovatis sub-approximatis alternis albis, inferiore subremota, supernè staminiferis, squamosibracteatis, distigmaticis; fructibus ovatis compressis erectis vel sub-patulis nervosis margine membranaceo-alatis viridibus acuminato-rostratis brevibifidis, squamam membranaceam albam lanceolatam aequantibus.

Culin 1-3 feet high, smooth, lax, reclining, and twice longer than the leaves; spikelets nearer above and white; fruit margined or winged widely for its length and width; light green.

Rocky Woods, Amherst and Sunderland, Mass.; Prof. Tuckerman, by whom the plant and his description have been kindly presented. It is related to C. Deweyana, and the white-glumed family, silver-flowered, according to its name, but appears to be new and distinct; discovered the last season.

Note. C. Rugeliana, Kunze, suppl. to Schkuhr, No. 56, p. 189, is C. aestivalis, Curtis, according to Boott, Illust., p. 54, No. 133. C. miser, Buckley, in this Journal, vol. xlv, p. 173, and vol. xlviii, p. 140, is considered by Dr. Boott to be C. juncea, Willd. System, Veg., 1826, No. 226. See Boott, Lin. Trans. vol. xx, p. 116, and Illust., p. 55. The descriptions of Willd. & Kunze sustain this conclusion of Dr. Boott.

261. C. paludosa, Goodenough. Schk. fig. 103.

Spicis pistilliferis, 2-4, sæpe 3, cylindraceis erectis oblongis, arctèfloriferis sub-approximatis, superioribus sessilibus, inferiore sæpe longopedunculata vix vaginata inferne attenuata et hinc sublaxiflora, alternatis et foliaceo-bracteatis; perigyniis (fructibus) ovatis in breve rostrum bidentatum attenuatis vel ovalibus acuminatis brevi-rostratis distinctè et multinervosis subcompressis subglabris tristigmaticis, squamam angustam lanceolatam aequantibus vel lanceolata cuspidata brevioribus.

Culm 1-2 feet high, erect, triquetrous, scabrous above, longer than the rough-edged leaves, with leafy bracts equal to or surpassing the culm. Varies, like the European plant, in the length and thickness of its spikes, and in its glumes or scales.

Near Boston-Wm. Boott, Esq., in 1859, probably introduced not many years since. Common in England, Germany, and Sweden.

262. C. monile, Tuckerman. Boott, Illust., No. 71.

Spicis staminiferis, 2-4, longis, cylindraceis, gracilibus cum squama longo-lanceolata; pistilliferis 2, rarò 1, oblongo-cylindraceis, subremotis, brevi-pedunculatis, sub-densifloris, infima interdum basin attenuata subnutante, foliaceo-bracteatis vix vaginatis; fructibus globosis vel ellipsoideis inflatis brevi-rostratis bidentatis glabris multi-nervatis stramineis cum ore rostri sub-obliquo, squama angusta oblonga lanceolata sub-duplo longioribus.