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Kentish 1823
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NOTES from KENTISH'S GREAT MAP OF HAMPSHIRE, 1823

FA1999.33  
These notes are made from sheet 36 of a lithograph map of Hampshire, by Nathaniel Lipscomb Kentish, Winchester, Hampshire, about 1823-24. The map studied is in the Map Collection of Hampshire CC Museums Service, item HMCMS:FA1999.33
map type: HantsMap & Kentish 1823

MAP FEATURES

title    
Printed at the top is:-
PART OF KENTISH'S GREAT MAP OF HAMPSHIRE.

map maker    
Printed at the bottom is:-
Drawn from Actual survey & Published by & for Nat. Lipscomb Kentish, Winchester.

scale    
The map has no scale line. An estimate of the scale was made by measuring a length of road delimited by milestones. 2 miles = 247.5mm, giving a scale about:-
1 to 13000
assuming a modern mile, about:-
5 inches to 1 mile

watermark    
The paper is Whatman paper with date 1823, watermark:-
J WHATMAN / TURKEY MILL / 1823


ONE SHEET

Only one sheet of this map series is in the HMCMS Map Collection; no one else seems to have any other sheet, or even to have heard much of Nathaniel Kentish! It is suggested that the single sheet is the only sheet ever produced; that this was a trial sheet, perhaps to show to potential subscribers in a prospectus for the whole project, which never happened.
The title on the map includes the phrase 'part of' which would not usually be found on a sheet from a multisheet series; the usage supports the idea that this is a trial sheet.
The area covered by the sheet is just south of Winchester: part of St Cross, Winchester; Chilcomb; Compton, Compton and Shawford; Otterbourne; Twyford; Owslebury; etc.
The scale of the map is almost 5 inches to 1 mile. This is unreasonably large for the period to which the project belongs; it is not surprising that the project appears to have failed to find support.

Sheet Corners

The four corners of Kentish's sheet were located as well as possible in coordinates of the National Grid (using OS 2.5 inch Pathfinder sheet 1264, Winchester South and Chandler's Ford, SU42/52).
top left SU44122887
top right SU54012894
bottom left SU44292100
bottom right SU53932102
For simplicity take this as putting Kentish's sheet centred at SU49092496 say SU491250, width 9.77Km = 6.07miles ie 6 miles, height 7.90Km = 4.91miles ie 5 miles (being naive about errors!) The locating of the corners is not accurate enough to make deductions about the projection, or orientation of the sheet in relation to the National Grid.
Using this sheet as base a grid of sheets was constructed over an outline sketch map of Hampshire, including areas now in Dorset. This gives us an idea of Kentish's overall plan, his 'index sheet' for the project (image file KEN1NDX.gif which has sheet 36 picked out bold, pixel reference 155,145,188,170). Two suppositions may be made from this index sheet:-
Supposition: Kentish laid out his sheets to capture the edges of the county at the bottom left at his desired scale of about 5 inches to 1 mile; dubious. An alternative plan would have been to ensure that Winchester was centred in a sheet; on the actual plan Winchester is at the very bottom of the above the trial sheet, with parts of the outskirts on the trial sheet.
Supposition: Kentish labelled sheets from top to bottom, left to right, ie:-
      1 2 3 4 5 ?
    6 7 8 9 10 11 12
  13 14 15 16 17 18 19 20
  ? 21 22 23 24 25 26 ?
    27 28 29 30 31 32 33
    34 35 36 37 38 39  
40 41 42 43 44 45 46 47  
48 49 50 51 52 53 54    
55 56 57 58 59 60 61    
62 63 64            
The trial sheet can be MADE TO COME OUT as number 36, to confirm the uncertain reading of the smudged sheet number. Numbering in other ways cannot make this sheet come out to 36 or anything near; nor to the 16 mentioned in newspaper notices.
There is the wild thought that sheets were numbered out of spatial sequence, but in the sequence of intended surveying; this seems pretty unlikely.
Supposition: there would have been about 64 sheets in the complete Great Map of Hampshire. Queries (?) are shown in the sheet diagram where there could have been more sheets; and, do notice that the county boundary used here is very inexact.

LITHOGRAPHY

Lithography was not the usual way of printing maps at the period.
The process was invented by Aloys Senefelder, in Bavaria, about 1798. It was kept a secret until patented in England, 1801, and was only well established as a printing method by about 1825. Kentish appears to have been ahead of his time.
(There was a lithographic printer in Winchester by 1825.)
Some coments about lithography have been received from Ian Mumford who has not seen the actual map, via Peter Collier (Portsmouth University). The size of the litho stone, at least 30x25inches, is large but not exceptional. The Admiralty were experimenting with stones 3x3feet about this time. The map is probably printed by from two stones; one for the hill hachures and the other for the line detail. The map might well have been printed in London.

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HantsMap Notes -- KENTISH1.txt
MN: 1.3.1999
last edit: 3.2.2000