1 
18 
Table showing the First Appearance of Ice, &c. 89 
First appear- | . ; sae = 
ance of ice in | , Obstructed or Open again. Ice gives way. | Open for navi- 
the river. closed, gation. ~ 
25 N. 8 
25 April 6 
1763, March 26 
Dec. 8 1779, Feb. 
Dec. 4 Dec. 12 1780, March 8 March 18 
1781, March 7 March 13 
Open. 1782 arch 12 
Jan. 5 Jan. 15 
ec. 9 Dec. 14 Cs 
Nov. 24 Dec. 24 Dec. 1 1783, Feb. 1 March 16 
Dec. 22 1784, March | 15} March 24 
ic. Dec. 27 Dee. 5 1785, April2 + April 7 
Nov, 24 Nov. 27 1786, March March 15 
ec. 11 Dec. 14 1787, March 13 ees 
ec.5 | Dec: 17 Dec. 7 1788, March 14} Mar 
ec. 13 Dec. 19 1789, March 14 March a 
No record Sack 
: arch 4 
Dec. 10 at Feb: 25 pee 19 
Shen a Nov.28 1791, March 11] March 22 . 
Dec. 5 1792, March 13| March 18 
1793, Feb arch 18 
~ Open. 1794, March a 
Jan. 5 1795, Ma ; 
4 Feb. 22 ~ 
Nov. 28 1797, Feb. 10 ; eat 
Jan. 15 1798, March 17 : 
Nov. 22 ; tebe Dec. 1 1799, March 22 
Dec. Dec. 13 | 
Jan. 2 
Dec. 16 1801 Seb. 27 
Jan. 11 
Dec. 13 Dec. 29 1802, Jan. 8 Feb. 16 
Dec. 23 Dec. 30-31 (1803, Feb: 7 Feb. 19 
Dec. 10 arch 26 
Open. 1805, March 7 
E Jan. 9 1806, Feb. 19 Feb. 24 : 
Dec. 6 Dec. 8 : : ees 
_Nov. 20 Open. 1807, March 10; March 18 
aoe Jan. 2 y § Man ~! March 2— 
Dee. 15 is Dec. 19 3 eg 
a Jan. 2 809, March 21} April 1 
Nov, 24 Dec. 2 f 
Dec. 13 110§ 32-1 | March 5 
: Feb. 20 aa, 
Dec. 15 1811. March 22 
1812, Feb. ; 
Dec. 12 ec. 24 1815, March 9 
Dec. 6 and 17|§ P&C; 53/1816, Mareh 2 | Mareh 14 
Dee. 23 
Dec. 12 1818, March 3 
Dec. ll 1820, March 19 
Dec. 15 1821, March 10 
. 1822, March 4 
Dec. 9 1823, March 12 
No record. 
Vol. xxxix, No. 1.—April-June, 1840. 12 
