62 KNUBLEY: THE BRITISH ASSOCIATION AT CARDIFF. 
of this country did not know how to make use of an Ordnance 
Map.* 
Mr. Holgate said that it would be desirable to have the contours 
of different heights printed different colours. It would then be easy 
for teachers to get their pupils to trace out these contours, and cut 
them out in cardboard. For teaching geography in an interesting 
way they could not, in his opinion, have anything better than a 
raised map, made in this manner. 
Mr. Mills said that it was only fair to state that he had never 
written to Stanford’s for any map without receiving it by return of 
post. He had never experienced any difficulty in obtaining maps. 
Mr. Gray was of opinion that the maps should be sent gratuitously 
to schools. The children often had no idea of what a map meant, 
and they should have the maps of their own districts on different 
scales, in order that they might gain a better knowledge of geography. 
Mr. Whitaker said that there was no difficulty in getting one-inch 
maps with the contours printed on them, as the Ordnance Survey 
was now engaged in producing such maps. The work required time, 
however, as the copper plate of a one-inch map took two years to 
engrave. If the Government could be forced into using photo- 
zincography, the maps might be produced more rapidly. He knew 
that nearly all the one-inch maps were to be procured with contours, 
although not with hill-shading. Processes were now being tried at 
Southampton for printing in the hill-shading in a transparent ink, 
which would not obscure the lettering, the roads, rivers, or contour 
lines, etc. The chief delay occurred in the engraving, but the maps 
were always dated. With respect to the six-inch maps, Mr. Whitaker 
said that local surveyors or anyone who could pace accurately, could 
fill in new features for themselves. 
Mr. Sowerbutts expressed his belief that the delay was mainly 
in the method of producing the maps. He had been surprised at 
the facility with which the Ordnance Maps were produced in Brussels, 
for ‘about fOurpence each, directly from the zinc plates. 
* The f ollowing seioletons were referred by the General sone gg to the 
Council for consideration and action, if desirable, at the Cardiff meeting :— 
t the publication of the one-inch and six-inch Oe Survey 
Maps} is, in the! interests of science, urgently required at the earliest possible 
pee no less than in the interests of industry, manufacture, and technical 
educ: 
2. That steps be taken, and provision made, for keeping the Ordnance 
Maps up to date. 
3... chat the Maps should be made more accessible to the public, 
should be sold at a lower price, as is the case in — all other official 
publications, such as Admiralty Charts, Blue Books, 
Naturalist, 
