C. A. Schott— Magnetic Declination in the United States. 29 
TABLE IIl—continued. 
Year Obsd. Compd.| Year. Obsd. Compd. Year. Obsd. Compd, 
Portland, Me. Boston, Mass. Providence, R. I. 
1763-5 +775 «=4.8°05|1700°5 +1000 +9°95/17175 +960 49°73 
1775°5 8°50 8:14 | 17085 9:00 9°45 |1720°5 9°47 9°49 
1845-4 9=«-11:47) 11°55 | 1741°5 7-50 7-52 |1725°5 9°23 9°14 
1851°6 = =11°69 ~—«-11°91 | 17760 67 6°62 |1730°5 8-90 8:85 
1859°5 = 1233) = s:12°33 | 1782-5 7-00 6°64 |1735°5 8°65 8°59 
1863-5 =. 12-47 12°52 | 1793-5 6:50 6 82 |1740°5 8-25 3 
1864-8 12°73 12:58] 18075 6-08 7-28 | 1745°5 7-98 8-02 
18655 1271 12°61] 1839-5 9°10 9-03 |1750°5 167 7-66 
1866-1 12°72 12°64] 1846-7 9°52 949 |1755°5 1:35 T27 
1873-7 +1289 +412°94/1855°6 1023 10°05 |1760°5 “95 6°88 
1872°7 +11:25 +11°01 |1765°5 6-72 6°53 
Burlington, Vt. 1769°5 650 6:29 
1775 5 6°33 615 
17935 +763 +17:63 1780-5 6°27 612 
i son T51 1855 6°22 617 
. 7-70 7-69 : 1790-5 617 6°25 
1826-5 7-60 1:94 Cambridge, Mass. 1795°5 617 6°32 
1830°5 817 8:21/17085  +9°0 + 9°30 | 1800-5 6°25 6°37 
1831-5 8°25 8°29 | 1742°5 8-0 7-10 | 1805-5 6°32 6°40 
1832-5 842 8-37 | 1757°5 7-33 7-28 |1810-5 6-40 6°46 
1834°5 8°83 8°52 | 1761°5 7°23 T1T 18155 6°50 6°55 
1837 6 8°75 8°75 | 1763°5 7-00 713 11819-5 6°62 675 
one eas 9-33 | 1780-5 7-03 6°90 | 1825-5 6°85 7°06 
1855-7 9°94 | 1782°5 6°15 6°89 | 1830- TT 7-45 
iba. 8 rae 3 +11'32 | 1783-5 6°87 6°90 118355 1-57 7-90 
788°5 6°63 6°93 | 1840°5 8:42 8°36 
Rutland, Vt. rt he 7-50 7°52 |1841°5 8°52 8°45 
: 35°5 8°85 9°02 | 1842-5 8°65 853 
178 i : 
eee ee a ee ee ee ee 
1811 i pas 6 840°4 9°30 9°36 118556 +952 +942 
ae 6:16 | 1849-2 9°57 9°49 
oad 9-49 1844°5 9°65 9 65 Hartford, Conn. 
8 +10. 01 + 10-91 | 145-4 9°53 9°72 |17865 +542 +5°28 
850°6 950 10-07 /1810°5 ANT 525 
Portsmouth, N. H. 18525 1013 10°20/1824°5 5°75 5°60 
17715 ; eg | 18545 «10°21 ~=——:10°33 | 1829-0 ~ 5-16 
nis 7A +178) 1855-4 10-91-1039 18596 729134 
1850-7 : 565 10°47 10°46 1867 +78 +784 
18595 atic, 17 ool i8693 10-80 ~—«1063 
+1b25 +1112) 1967-5 410-70 +11:09| |New Haven, Conn. 
N 11615 +578 +6°04 
Newburyport, Mass. 1175°5 5°42 527 
1775-5 +6°75 7-00 1780°5 5°25 507 
ater 7-30 = 7-0 1811°5 517 ATT 
(850-7 10-09 10-28 1819°8 4°42 5-00 
1859-5 410-97 410-81 Nantucket, Mass. 1828°5 5-28 5°35 
1775°5 +650  +6°50|1835°3 5°68 oat 
8 1834°5 8°45 8°64 | 1836°5 5°92 . 
i alem, Mass. 1838:9 9°04 8°89 |1837°9 5°83 5-87 
ped + 6:90 ag 1842-7 9:15 9°11 |1840°5 617 6°02 
805-8 5-95 1843-7 9:17 9°17 |1845°7 6:29 6:37 
a 6-09 as 1846°6 9°23 9 33 |1848°6 6°58 6°57 
He 96 = 10-24 9°75 | 1855°6 9°97 9°83 |1855°6 1-05 1-08 
855°6 +1083 +10-4011867-4 +1033 +1042j18725 +846 +837 
