is equal to a river 50 miles wide, 1,000 feet deep, current four miles an hour, with a temperature of 65° Fahrenheit, cooling down to 40° as it gets north.

One Sailing Knot, 6,174 ft.
A sailor's day commences at 12 noon.

One Statute Mile, 5,280 ft. (5-6 knot).

с

RATES OF FREIGHTS ON CERTAIN ARTICLES, AT THE FOLLOWING DATES, IN THE

UNDERMENTIONED TRADES.

(Extracted principally from the Circulars of Messrs. Galbraith, Pembroke & Co.

TABLE OF COAL CONSUMPTION IN TONS, PER DIEM.

NOTE. To find the consumption of a vessel, say, of 5,500 I.H.P. at 1'4 lb. per I.H.P. per hour, take the 5,000 in the first column, which gives 75'0 tons then take the 500 in the same column, which gives 7'5 tons, and add the two together = 82'5 tons per 24 hours; or, for example, 5,500 I.H.P. x 14 lb. x 24 hours 2,240 825 per day.

TABLES OF DISTANCES.

NORTH SEA, ENGLISH AND ST. GEORGE'S CHANNELS, ETC.

Brest outside Ushant 627 Glasgow by Channel.. 766 Inverness..

...896 Amsterdam Canal......188 Wick.

48

.85

210

Bordeaux.

...915 Havre

.185

.198 Berwick

.1120 LIVERPOOL to

52

137
Dundalk
314 Belfast

1230 Londonderry
1877 Barrow
1205 Whitehaven

.695 Stranraer.
590 Ardrossan

Bergen, N. Channel.. ..431 Milford

Swansea

SUNDERLAND to

Cardiff

(North about)

Bristol

.170 Stettin
188

Rotterdam Canal ·370

237 Amsterdam Canal......353

.266 Ostende

-386

Belfast

Dublin.

..610 Southampton
..602 GLASGOW to
690 Ardrossan

470 Christiania

-558

Hamburg

-387

45 Rotterdam Canal

195

Liverpool.
Cardiff
Limerick

720 Campbelton

-74 Amsterdam Canal.

198

880 Stranraer

..87 Ostende

205

808 Belfast

116 Antwerp

263

SLEEVE, CATTEGAT, BELTS, BALTIC, GULFS OF FINLAND