is prefixed, have resulted from Astronomical Observation. The Longitudes which have been determined by Chronometers, are designated by C.; and those by Lunar Distances by

. Those without distinguishing marks are the result of Triangulation.

The Longitudes in the following Tables depend upon that of Villegagnon Island at Rio de Janeiro, which was found by fourteen Chronometers from Plymouth to be 43° 05′ 03″ West of Greenwich.

Coast, &c.Name ofLatitude
South.		Longitude
West.		Variat
East.		Tide.
Place.Particular
Spot.		H. W. at
F. & C.		Direction
of Flood,
and Rise
of Tide.
° ′ ″ ° ′ ″ ° ′ H. M.
Coast of
Brazil.		SantosArsenal 23 55 51C. 46 16 334 22
——Moela Lighthouse 24 03 06C. 46 12 20
Alcatrasse IslandCentre 24 08 10C. 45 39 15
Abrigo IslandCentre 25 07 28C. 47 52 51
Figuera IslandCentre 25 21 29C. 47 54 11
ParanaguaFort on the Bar 25 30 14C. 48 17 105 44
——West Point of Cotinga 25 29 50C. 48 26 325 34
——Church of Sta Antonina 25 25 42C. 48 39 52
St. CatherineSta Cruz d'Anhatomirim 27 25 35C. 48 29 416 30
——City, President's House 27 35 30
Cape St. MaryExtremity34 40 20C. 54 05 58
River
Plata.		Gorriti IslandWell at N.E. end 34 57 00C. 54 53 38
54 53 40		13 48
Monte VideoRat Island, Flagstaff 34 53 2356 09 3011 23
——Cathedral, Cupola 34 54 3756 07 3512 07
——Lighthouse on Mount 34 53 2156 11 04
Buenos AyresCathedral34 35 50C. 58 17 53
East
Coast of
Patagonia.		Port Sta ElenaObservy marked on Plan 44 30 45C. 65 17 2519 104 017 feet
Cape Two BaysHill at projecting Point44 58 00
Cape BlancoNorth Point47 15 00
Port DesireRuins 47 45 05C. 65 51 4519 4212 1018½ feet
Penguin IslandMount at North end47 54 4565 41 30
Sea Bear BaySandy Beach at S. side 47 56 49C. 65 44 0020 4712 4520 feet
Shag RockRock48 08 2565 52 56
Watchman CapeMonte Video48 18 5566 18 00
Bellaco RockRock48 30 50C. 66 09 25
Port St. JulianShag Island, in Harbour 49 16 00C. 67 38 0222 1710 30Northward
rises 38 feet,
(observed off
the river's mouth.)
——Wood Mount49 14 0067 43 34
——Cape Curioso49 11 1067 34 30
C. Franc. de PauloExtremity49 41 1867 34 30
Santa Cruz
Observatory opposite
Sea-Lion Island
 50 06 4368 25 00
C. 68 22 42		20 5410 1533 feet
——Mount Entrance 50 08 3068 19 10
——Station up the River 49 57 3068 52 55
———— 50 07 3069 08 00
Broken Cliff PeakBrink50 14 3068 31 1512 15Northw.
Lion MountSummit50 20 0068 49 30
Observation Mt.Summit 50 32 3569 00 40
Coy Inlet
Height on South side
of Entrance
 50 58 2769 06 50
C. 69 05 17		9 30
——Station up the Inlet51 06 3069 24 10
Cape SanchesExtremity51 06 5669 03 30
Tiger MountSummit51 21 3669 01 50
——C. 69 03 28
C. FairweatherSouth extreme.51 32 0568 55 159 0N.W.28 feet
Gallegos RiverObservatory Mound 51 33 2168 57 50
C. 68 56 42		21 478 5046 feet
North Hill——51 49 5669 24 30
FriarsSmallest & Northernm.51 49 1269 10 00
——Largest & Southernm.51 50 0869 09 00
ConventsNorthern51 52 0969 18 40
——Southern51 53 0169 17 00

TABLE II.

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