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Notes from Seller's Chart of the Narrow Seas, 1675
These notes are made from a chart of the Narrow Seas in the Atlas Maritimus or Sea Atlas, by John Seller, Exchange Alley, Royal Exchange, London, 1675.
This chart has been numbered '7' in the binding studied. The chart size is: wxh, sheet, unfolded = 60.5x53cm, wxh, map = 527x427mm.
MAP FEATURES

title cartouche
banner cartouche
Printed lower right is a banner held by mermaids and cherubs:-
A CHART of ye NARROW SEAS Newly Corrected by John Seller Hydrographer to the Kings most Excellent Majestie
with the royal coat of arms of Charles II.
The map includes England, Wales, Scotland with Orkneys and Outer Hebrides, Ireland, and the edge of France.
Printed upper left is Neptune riding a dolphin, carrying a two tine 'trident', a shield with the royal coat of arms and a crown, and the union flag of England and Scotland.

orientation
compass rose
up is W
rhumb lines
The chart has a compass rose; centre a heraldic rose, star points for cardinal, half cardinal, false and by points; North marked by a magnificent fleur de lys, East by a smaller cross. The chart is printed with West at the top of the sheet, top of the page as folded in the volume.
Rhumb lines are drawn across sea and land areas, from the compass rose and other centres in a circle of 16; bold lines for cardinal and half cardinal directions, dotted lines for false points which joins the centres, and light lines for by points.

scale lines
scale
Printed upper right are scale lines:-
English and French Leagues 20 to one Degree
Duytsche mylen 15 un een graet
Leagues de Spania 17 1/2 un grada
The english scale has 50 leagues = 110.7mm giving a scale 2512308 using a nautical mile 6082.95 feet for southern England (not quite right). The chart scale is about:-
1 to 2500000
34 nautical miles to 1 inch
(40 miles to 1 inch)

latitude scale Printed top and bottom, ie west and east sides, are scales of latitude; chequered at 10 minute intervals, labelled at degrees. The chart includes from 48d 20m to 60d 10m N.
A different estimate of scale can be got from the latitude scale. 5 degrees latitude = 221.8mm gives a scale 1 to 2509430, the chart scale is about:-
1 to 2500000
40 miles to 1 inch

sea area
sea plain
depth soundings
sandbanks
anchorages
ships
The sea is plain, with some areas labelled, eg:-
St. GEORG HIS CHANNEL
Depth soundings in fathoms are scattered about the seas around the south coast of England and English Channel.
A few sandbanks are drawn as dotted areas, some labelled, eg:-
Dogger Sand
Owers
The Shingles can be recognised, but are not labelled.
Rocks are shown by crosses or dots, for examples west of the Isle of Wight, and at Black Point, Flanders.
Anchorages are marked by a fisherman's anchor, for example off Hurst and at Spit Head.
A couple of ships are drawn to decorate sea areas; the clearer of these has three mast and a sprit, the fore mast with main and a furled top sail, main mast with furled main and top sails, mizen with a lateen sail. There are flags at the mast heads.

country There are no country borders. Each country on the map is labelled by name, eg:-
ENGLAND
WALES
and has a shield with the coat of arms; England, including Wales, has its three lions, a crown above.
The coast line is tinted differently for each country; England and Wales together blue, Scotland yellow, Ireland red, the islands varied.

county Some of the english counties are labelled, eg:-
HANT SHIRE

settlements Place names are given along the coasts, eg:-
Hampton [Southampton]
Portsmouth


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