296 
LITTLEHALES. 
Lat. 53° 01 / N. PETROPAVLOVSK, SIBERIA. Long. 158° 43' E. 
Year. 
Magnetic 
declina¬ 
tion. 
Authority. 
Observer. 
Where recorded. 
1779.5 .... 
° 
—6.30 
Capt. J. King. 
A Voyage to the Pacific Ocean, London, 1784. 
1792. 
—6.00 
(4. Sarvnhp.fiF.. 
F. P. Lutke’s Voyage Around the World, St. 
Petersburg, 1835. 
1804.7. 
—5.49 
A. J. von Krusenstern. 
Voyage Around the World, London, 1813. 
f Capt. F. W. Beechey, 4.22... 
Narrative of a Voyage to the Pacific, 1825- 28, 
1 
London, 1831. 
1827.0 .... 
—4.07 
1 Capt. F. P. Ltitke 
3.72. 
Lenz in Mem. St. Peters. Acad. Sc., vol. 1,1838. 
LA. G. Erman, 4.10. 
Reise um die Erde, Berlin, 1835. 
1837.7 .... 
-3.45 
Du Petit Thouars. 
Voyage autour dir Monde, Paris, 1843. 
1849.5 .... 
—2.61 
Capt. H. Kellett... 
Gen. Sir Edw. Sabine in Phil. Trans. Roy. Soo., 
vol. 162, London, 1872. 
1854.6 .... 
—2.59 
Frigate Aurora.... 
Compt-rendu annuel de l’Observatoire Phys. 
Cent, de Russia, annee, 1854. 
I860. 
—1.41 
K 8! Stn.ritzkv 
Onazevich’s collection of observations made 
during hydrographic explorations in the Pa¬ 
cific, 1874-’77. 
1870. 
—1.15 
M. S. Onazevieli... 
Rp.forprip.p as n.hovp. for 18H6. 
f Prof.Stellingman,lS90,+.52 
] 
1891. 
+0.83 
^ Lieut. Lachton, Rus. N., 
1 
| 
8 Hydrographic Office archives document. 
[ 1892, +1.16. 
1 
Year. 
Observed. 
Computed. 
O-C. 
o-c 2 . 
1779.5 .... 
o 
—6.30 
o 
—5.97 
—0.33 
0.1089 
1 
1792. 
—6.00 
—6.00 
0.00 
0.0000 
L804.7 .... 
—5.49 
—5.70 
+0.21 
0.0441 
1827.0 .... 
—4.07 
—4.44 
+0.37 
0.1369 
1837.7 .... 
—3.45 
—3.68 
+0.23 
0.0529 
Probable error of a single observation = ± 21.3'. 
1849.5 .... 
—2.61 
—2.70 
+0.09 
0.0081 
Period — 252 years. 
1854.6 .... 
—2.59 
—1.63 
—0.96 
0.9216 
1866. 
—1.41 
—1.37 
—0.04 
0.0016 
1876. 
—1.15 
—0.65 
—0.50 
0.2500 
1891. 
+0.83 
+0.18 
+0.65 
0.4225 
1.9466 
Empirical equation for determining the declination for any year: v — — 2°.682 
+ 3.349 sin y (i — 1850) + 0.0156 cos y (t ~ 1850). 
