220 Scientific Intelligence. 
10. Quantity of Rain which fell at Leadhills from 1813 to 
1820. — The following Table shews the quantities of rain which 
fell at Leadhills from the end of March to the beginning of No- 
vember, measured by a guage, in the garden of Mr Irving’s 
house, for the years 1813 to 1820 inclusive. 
1813. 
1814. 
1815. 
1816. 
1817. 
1818. 
1819. 
1820. 
April, 
Not ob. 
6.67 
1.90 
1.98 
0.61 
3.37 
Notob. 
2.08 
May, 
5.10 
0.93 
6.20 
3.91 
5.01 
1.66 
3.09 
7.80 
June, 
2.12 
2.97 
3.52 
2.65 
3.10 
4.52 
6.13 
4.18 
July, 
4.32 
4.85 
2.99 
5.13 
5.15 
6.31 
2.80 
3.07 
August, 
1.68 
6.03 
7.76 
3.43 
7.28 
2.64 
2.43 
8.83 
September, 
5.23 
4.12 
8.99 
7.21 
3.25 
7.05 
4.22 
4.61 
October, 
4.73 
6.04 
7.38 
4.57 
2.00 
7.48 
7.90 
4.04 
31.61 
38.74 
28.88 
26.40 
33.03 
34.61 
The guage was taken in during winter ; and the rain which fell 
in April 1813 and 1819 was not observed, as Mr Irving was 
not at Leadhills these years till after this month had begun. 
The largest quantity observed to fall within twenty-fours was 
2.56 inches, which fell betwixt two in the afternoon of the 25th 
September 1815, and nine in the morning of the 26th. 1.22 in. 
had fallen on the 22d of the same month. 
11. On the Temperature of the German Ocean. — The follow- 
ing observations on the temperature of the German Ocean were 
made by Mr John Murray : 
1821, Temperature. 
Feb. 22. Seven miles off Huntley Foot , (River Tees), depth 40 fa- Fahr. 
thorns, at 10 h 30' A. M. = - - - 42° 
Four miles off Red Cliff \ (to southward), depth, say 35 fa- ' 
thorns, at 10 o’clock P. M. - - - 40.75 
Three miles off Whitby, depth 28 fathoms, at 4* h 22' A. M., 41 
Feb, 23. Two miles off Kelsey , depth 7 fathoms, at 8 o’clock A. M., 37.5 
Two miles off Spurn Lights ^ depth 7.25 fathoms, at 9 h 22' 
A. M., 38 
Three miles off Spurn Lights , mouth of the Humber , depth 
7 fathoms, at 10 o’clock P. M., 38 
Feb. 24. In the Humber , three miles from Hull, at 9 o’clock A. M., 35,75 
MAGNETISM. 
12. On the Effects of Magnetism on Chronometers. — We 
understand that, in consequence of the paper published in the 
last volume of the Philosophical Transactions, relative to the 
action of a ship’s iron on the rate of chronometers, (See this 
Journal , vol. iv. p. 199 ) Mr Barlow of the Boyal Military 
