106 
WILLIAM SMITH : HIS MAPS AND MEMOIRS 
" The same numbers which refer to the section, may refer to an 
explanation of the chemical properties of each substance, so far ii» 
discovered. This may be placed at the end of a book, or make a 
separate volume where those properties may be more minutely examined 
than can consistently be done in the body of the work, which is in- 
tended to form a true representation of the order of Nature, with na 
more digressions from the main subject than are absolutely necessary 
to make it intelligible. Plates should be bound up at the end of each 
volume, in a peculiar manner ; these, as well as the strata, to make 
them more striking, should be coloured. 
" The Second Section of the work may be divided into chapters, 
each stratum making a chapter or division, to which its name in con- 
spicuous characters should stand as a title. The names of particular 
substances described in this division should also appear conspicuous 
and striking as well as the places they are found at, or near to ; and a 
more particular section will accompany each part of the work, with a 
map divided into squares, or published in parts, which may be united 
together, and form a complete map and general section on a large 
scale. [Query, Map of each Stratum ?]. 
" The chemical part, which refers to the other by the numbers, 
may be arranged under the heads Iron, Coal, Limestone, &c. By this 
means those veins which lie very distant from each other, will admit 
of an easier comparison. This should form a summary of the more 
useful minerals." * 
Fortunately we are able to show precisely what claims Smith had 
to priority in the way of geological mapping. When the first WoUaston 
Medal w^as awarded to him in 1831 he presented to the Society " some 
documents referred to in the president's address," These were : — 
(1) A Table of the Order of Strata, and their imbedded Organic 
Remains, in the vicinity of Bath ; examined and proved prior to 1799. 
(2) A map of the country five miles round Bath, on the scale of 
one and a half inches to the mile. " Coloured geologically in 1799, by 
William Smith." 
(3) The first draft of a geological map of England and Wales, 
entitled ' ' General Map of Strata found in England and Wales, by 
William Smith, surveyor, 1801." 
* See Phil. Mag., Jan., 1833, pp. 48-9. 
