The earliest of the Bartholomew layer-maps seem to be sectional maps 
for Baddeley's Thorough Guide to the Lake District of the early 1880s. 
(It is, I believe, unclear what sort of layered map was displayed by 
the firm at the Paris Exhibition in 1878.) The bathymetric maps are 
nice maps, but I think the half-inch ma[p, in its various versions, was
much better known and more influential =- not least on the Ordnance 
Survey!

However, the general layer principle was anticipated by the OS in two 
groups of 'Shaded Zones of Altitude' mapping: one a single sheet of the
Edinburgh area, published in 1858, but anticipated by a manuscipt 
version (actually MS annotation odf standard published sheet) in 1857, 
now in the Royal Geographical Society in London, and the other a group 
of ten of the Lake District in 1867, prepared as a basis for mapping 
for a Royal Commission on water supply. These were engrabved on copper,
and the necessary tinting was provided by what might charitably be 
described as shades of grey, though much of the base-map detail was 
almost or wholly illegible!

What 'came first' and what was 'influential' aren't necessarily the 
same!

Richard Oliver

On Tue, 29 Jan 2008 08:42:56 -0000 "Fleet, Christopher" <[log in to unmask]>
wrote:

> Giles,
> 
> Not wanting Scottish maps to be forgotten in this cartographic line 
up...
> 
> Although not mechanically-reproduced, I think an excellent case could
be made for the Roy Military Survey Map of Scotland (1747-55) - 
http://www.nls.uk/maps/roy/index.html - not only on aesthetic terms and
presentation of relief, but also the influence it had on what became 
Ordnance Survey and Military Survey, and related 18th c. military 
mapping around the world. (etc., etc... see the recent "Great Map" 
facsimile prefatory essays for a much better justification!)
> 
> Kirkwood's 'Plan and Elevation of the New Town of Edinburgh' (1819) -
http://www.nls.uk/maps/early/towns.cfm?id=418  - for its impressive and
attractive flattening of all the elevations of buildings within a 
two-dimensional map, and beautifully engraved.
> 
> A good case could be made too for Bartholomew's layer colouring - for
example, their Bathymetrical Survey charts with relief and depths 
-http://www.nls.uk/maps/early/bathymetric/index.html - and also other 
thematic mapping, such as JG Bartholomew's 'Chronological map of 
Edinburgh showing expansion of the City from earliest days to the 
present' (1919) - http://www.nls.uk/maps/early/towns.cfm?id=412 
> 
> Chris Fleet
> Deputy Map Curator
> National Library of Scotland
> 33 Salisbury Place
> EDINBURGH
> EH9 1SL
> United Kingdom.
> 
> Tel. 0131 623 3973
> Fax. 0131 623 3971
> E-mail: [log in to unmask]
> 
> View maps website: http://www.nls.uk/maps
> ________________________________________
> From: A forum for issues related to map & spatial data librarianship 
[mailto:[log in to unmask]] On Behalf Of Da Cruz, Antonio
> Sent: 28 January 2008 11:08
> To: [log in to unmask]
> Subject: Map 'Graphic Classics'
> 
> I've been asked to compile a list of 50 or so maps that have become 
'graphic classics' in one way and another, for a book on graphic 
classics.  
> 
> The criteria for inclusion are very broad.  Basically they include 
maps which established important new principles that then became 
standard, or which significantly advanced the science of cartography. 
They also include maps which are important or fine in design terms.  
There's no starting or cut-off date, but anything pre-mechanical 
reproduction would have to have a strong argument attached to be 
included.
> 
> The list to date includes Beck's Underground map, John Snow's cholera
map of 1854, the first weather map, Ortelius's world atlas of c. 1570, 
a population density map, and the Gall-Peters' projection, as examples.
> 
> I would be very interested to hear what maps members of the 
cartographic community would include on such a list.  As well as maps 
from centuries ago, I'm also looking for maps which have been published
in the last 30 years or so which have become graphic classics, or look 
like they may do so.
> 
> Giles Darkes
> 
> 
> 
> 
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-------------------
Richard Oliver, B.A., D.Phil., F.B.Cart.S.,
Research Fellow in the History of Cartography
School of Geography, Archaeology & Earth Resources
University of Exeter
Exeter, EX4 4RJ