INCH INCLINOMETER; FOX'S DIPPING
APPARATUS.

The following tables contain the absolute determinations of the magnetic
inclination and declination made in the Voyage of H.M.S. Rattlesnake on
shore. A very large series made almost daily at sea with Fox's instrument
and the Azimuth Compass require several corrections before they are fit
for publication.

In degrees, minutes and seconds.

...

MADEIRA.

In Mr. Veitch's verandah, Funchal, by Robinson's Needle, A: 59 41 7 N.
In Mr. Veitch's verandah, Funchal, by Fox's Needle, A: 60 40 2 N.
On the summit of the Pico dos Bodes, by Fox's Needle, A: 64 10 5 N.
Ther. 64. on the summit of the Pico dos Bodes, angle of deflection, 2
grains by Fox's Needle, A: 33 13 6.
Ther. 59. Funchal angle of deflection, 2 grains by Fox's Needle, A: 38 8 8.

RAT ISLAND, RIO DE JANEIRO.

By Robinson's Needle, A1: 12 15 1 S.
By Robinson's Needle, A2: 12 19 1 S.
Mean: 12 17 1 S.

SIMON'S BAY, CAPE OF GOOD HOPE.

In the dockyard near the Observation spot of Erebus and Terror, by Fox's
Needle A, with index error applied : 53 40 0 S.

TONNELIER'S ISLAND, PORT LOUIS, MAURITIUS.

By Robinson's Needle, A1: 53 48 9 S.
By Robinson's Needle, A2: 53 48 8 S.
Mean: 53 48 8 S.

HOBART, VAN DIEMEN'S LAND.

At the Magnetic Observatory, Ross bank, by Robinson's Needle, A1: 70 36 0 S.
At the Magnetic Observatory, Ross bank, by Robinson's Needle, A2: 70 41 5 S.
Mean: 70 38 7 S.

PORT JACKSON.

On Garden Island, by Robinson's Needle, A1: 62 45 3 S.
On Garden Island, by Robinson's Needle, A2: 62 47 7 S.
Mean: 62 46 5 S.

PORT CURTIS, NORTH-EAST COAST OF AUSTRALIA.

On Facing Island, by Robinson's Needle, A1: 51 28 9 S.
On Facing Island, by Robinson's Needle, A2: 51 30 9 S.
Mean: 51 29 9 S.

NUMBER 1 PERCY ISLAND.

In a sandy Bay, on North side of Island, by Robinson's Needle, A1: 49 3 5 S.
In a sandy Bay, on North side of Island, by Robinson's Needle, A2: 49 0 2 S.
Mean: 49 1 8 S.

KEPPEL ISLAND.

In a small Bay, on North side, by Robinson's Needle, A1: 50 46 6 S.
In a small Bay, on North side, by Robinson's Needle, A1: 50 49 6 S.
Mean: 50 48 0 S.

MORETON BAY.

Near the North-west end of Moreton Island, by Robinson's Needle, A1: 55
20 1 S.
Near the North-west end of Moreton Island, by Robinson's Needle, A2: 55
13 5 S.
Mean: 55 16 8 S.

PORT PHILLIP.

Near Captain Bunbury's House, Williamstown, by Robinson's Needle, A1: 67
12 7 S.
Near Captain Bunbury's House, Williamstown, by