The ground at Cadon Barrow

Bodmin Down
St. Agnes
Hensbarrow

O

105 2 O Whitstable
48 28 58

The ground at Carraton Hill

Trevose Head
Cadon Barrow
Brown Willy

}

ART. XLII. Elevations and Depressions.

At Trevose Head.

Sea Salter

The ground at Black Down

Carraton Hill
Brown Willy

SECTION FOURTH.

Determination of the Altitudes of the Stations above the Level of the Sea; and the mean Refractions deduced from observed Angles of elevation and depression.

At Bodmin Down.

Distances.

Cadon Barrow.

The ground at Trevose Head

Brown Willy

The horizon of the sea in the direction of Trevose Head
Ditto in the direction north

St. Stephen's Down.

·

50935 65697

elevated 39′ 24′′ elev. 10 48 depressed 6 39 elev. 29 2

elev. 27 49 depr. 22 33 elev. 16 O

elev. 54 24

depr. 36 49

elev. 36 3

depr. 30 56
depr. 31 12

elev. 25 21

elev. 35 18

elev. 42 9

The ground at Westbury

Inkpin

1

The ground at Moor Lynch

Dundon Beacon
Top of the staff (20 feet high) at Greylock's Foss-way

Lugsborn Corner.

Moor Lynch.

The ground at Highclere

Greylock's Foss-way.

The ground at White Horse Hill

Inkpin Hill.

Highclere
Beacon Hill, Amesbury

Nuffield 3.
Shotover Hill

White Horse Hill.

The ground at Moor Lynch

elev. 27 21 Dundon Beacon elev. 1 20 58 Top of the staff (20 feet high) at the west end of the base depr. 19

Beacon Hill, Amesbury.

depr.° 6' 8" depr. 3 56 13 elev.

28 18 8 38

elev.

depr. 1 59 14

depr.

32 45 0 9

clev.

elev.

23 11
9 2

elev.
elev.

elev. 1 53 56

elev.

34 48 0 34

elev.

depr.
elev.

6 57

depr.
depr.

depr. depr. depr.

Nuffield.

The ground at White Horse Hill
Top of the Staff at Brill on the Hill. Staff 13 feet high

2

depr. 4 45
depr. 6 z
depr. 6 43
depr. 4 12

Bagshot
Highclere

N. B. The half stage belonging to the Royal Society was used at this station.

Wendover.

Stow on the Wold.

Broadway Beacon.

depr. 5′ 36′′

depr. 11 20