at the Island of Balta, and at Woolwich Common. 437 
Taste continued. 
Comparat. Length, if 
Place. Latitude, | Length of Observers. Compression 
By ait Pendnlen. thisnuesvit = sh5: 
Barisns 3. o. 48 51 58-1 1:00370. |Borda 
Wootka, 0.2: 49 $5 15 | 1:00319 |Ciscar, &c. At 502 
Gotha....,...| 50 56,8 | 1°00338. |Zach 1003340 
Dunkirk...... 5i 2 8] 1:003824 |Biot, Mathieu Taser 
Wooiwich ....| 51 28 41 | 1:003756. |Gregory 
London....... 51 30 49 | 1:003551 |Desaguliers At 558 
re - iB Whitehurst, reduced : 
London....... 51 30 52} 1003835 ; by Troughtén 1003818 
London ...... 51 31 81] 1-005825 |Kater. Ther. 62° 
Leyden ......| 52 9 O|} 1:00374_ |Lulofs . ssa 
Arengsberg...| 58 15 9 | 1:00406. |Grischow =i At 60S 
Mulgrave ....| 59 34 20 | 100466 |Ciscar, &c. SAT S2BBST 
Petersburg ..| 59 56 35 | 1°00434  |Mallet 
Ralta (Zetland )} 60 45 3 | 11004697 |Gregory At 70° 
Unst (Zetland).} 60 45 35 | 1:0046S5 | Biot 1°005025 
Archangel ....] 64 33 0} 100474 |———— hase 
ENG. cio ohne - 66 48 ~G | 1:00470 |Maupertuis % At 802 
Fionouess). 2i<).°2, 7 4 ©| 1:00481, |Mallet 1005519 
Kola ........| 68 54 0 | 1:00510 |Mal’et ——_—-——— 
Spitzbergen ..| 79 50 0 | 1:00330 |Phipps, Lyons 
Il. Places having South Latitude. 
Comparative 
Place. Latitude, | Length of Observers. 
Pendulum, 
Equator ............ 0° Of of 1700000 Bouguer 
Zamboanga. ........ 6 54 27 1:00042 Ciscar, &c. 
VOTE ee a 12 4 58 1:00050. | Cisear, &c. 
Madagascar ........ 17 40 0 100073 Gentil 
ISIC BAUHO sole nara 355 18 35 45 1°00091 Ciscar, &c. 
Isle of France,....... 210 0 100135 
Port Jackson ........ $3 51-20 1°00207 Ciscar, &c. 
Cape of Good Hope .. 53 55-0 1:00208 Lacaille 
Monte Video........ 54 54 38 100217 Cisear, &c. 
Conception ......... 36 42 32 100212 Ciscar, &c. * 
Port St. Helena ...... 4429 34 1°00528 Cisear, &c. 
Port Egmont........ o| 21 3 1-00345 Cisear, &e. 
»Port Hemwt ens cps Ol Slee UL el a eater 
These tables (in the computation of which I have taken consi- 
derable pains to reduce the various measur¢s accurately to one 
standard) exhibit some singular anomalies*, The different tem- 
peratures at which the lengths were ascertained, doubtless furnish 
one cause of discrepance, which, in most cases, from the want of 
proper data, it is quite impossible to remove, But, after all fair 
* Compare, for example, Arengsberg with Mulgrave and Petersburg, 
Figeac with Bordeaux, Malta with Geneva, Paris with Gotha, Madras with 
Umatag, and generally the northern with the southern hemisphere, or the 
numbers in either hemisphere with the numbers in the last columa, which 
are computed from Laplace's formula (Mec. Céleste, tome ii. p. 150), for 
ays, which he exhibits as the medium compression from fifteen pendulum 
experiments at different places. 
; Ee3 allowance 
