486 €ol, Beaufoy’s Astronomical Observations, §Dre. 
Articte VIII. 
Astronomical Observations, 1822. 
By Col. Beaufoy, FRS. 
Bushey Heath, near Stanmore. 
Latitude 51° $7’ 44°3” North. Longitude West in time I’ 20°93”. 
Oct. 17. Immersion of Jupiter’s third § 1Th 27 14” Mean Time at Bushey. 
BMMItS NUKES 5 esiess www en's 17 28 35 Mean Time at Greenwich. 
Oct. 22. Immersion of Jupiter’s first 5 14 10 27 Mean Time at 
satellite... .....2...-.0...-. 0 14 H 48 Mean Time at Greenwich. 
Oct.. 26. Immersion of Jupiter’s second § 7 27 42 Mean Time at Bushey. 
aatellitel Gsieeis. lees be = T 29 03 Mean Time at Greenwich. 
Noy. 2 Immersion of Jupiter’s second § 10 05 39 Mean Time at Bushey. 
opp epabellite Os Vacwn.s casieecsjces 10 -07 00 Mean Time at Greenwich. 
Noy. 5. Immersion of Jupiter’s first ¢ 17 58 02 Mean Time at Bushey: 
+ REAR, ..- Toe Wins «ce dames a's 17 59 23 Mean Time at Greenwich, 
Nov. 8*, Emersion of Jupiter's third¢ 9 15 02 Mean Time at Bushey. 
satellite ...2.0..2-ce0 sitesi 9 16 23 Mean Time at Greenwich. 
Nov. 15. Immersion of Jupiter’s third 9 28 OT Mean Time at Bushey. 
Katellite cp ciespesh «nticte chis wii » 9 29 28 Mean Time at Greenwich. 
Nov, 16. Immersion of Jupiter’s first 8 49 38 Mean Time at Bushey. 
satellite......2... oy ey : 5 8 50 59 Mean Time at Greenwich. 
ArTIcLE IX. 
On Compound Interest. By Mr. James Adams. 
(To the Editor of the Annals of Philosophy.) 
SIR, Stonehouse, near Plymouth, Nov. 4, 1822. 
I¥ you can allow the following method of demonstrating the 
principal theorems of compound interest a place in the Annals 
of Philosophy, ¥ will thank you for its:insertion therein. 
I am, Sir, your humble servant, 
James ADAMs. 
a 
Article 1.—Let P be any principal sum put out at compound 
- interest, to find the amount in 7 years. 
Let 2 be the increase or znferest of 1/. in the first year, then 
* According to the Nautical Almanac, the emersion should have taken place at 
1» 39’ 32”; by the Connaissancé des Tems at 7" 38/15’, but the actual. observation 
oceurred at 95 16’ 23”, 
