An Introduction to the History of ScienceLibby, Walter
History
An Introduction to the History of Science
Libby, Walter
Science -- History
It remained for William Smith (1769-1839), surveyor and engineer, to
develop that species of chronology that Hutton had ascribed to organic
remains in the solid strata, to arrange these strata in the order of
time, and thus to become the founder of historic geology. For this task
his early education might at first glance seem inadequate. His only
schooling was received in an elementary institution in Oxfordshire. He
managed, however, to acquire some knowledge of geometry, and at eighteen
entered, as assistant, a surveyor's office. He never attained any
literary facility, and was always more successful in conveying his
observations by maps, drawings, and conversation than by books.
However, he early began his collection of minerals and observed the
relation of the soil and the vegetation to the underlying rocks. Engaged
at the age of twenty-four in taking levelings for a canal, he noticed
that the strata were not exactly horizontal, but dipped to the east
"like slices of bread and butter," a phenomenon he considered of
scientific significance. In connection with his calling he had an
opportunity of traveling to the north of England and so extended the
range of his observation, always exceptionally alert. For six years he
was engaged, as engineer, in the construction of the Somerset Coal
Canal, where he enlarged and turned to practical account his knowledge
of strata.
Collectors of fossils (as Lamarck afterwards called organic remains)
were surprised to find Smith able to tell in what formation their
different specimens had been found, and still more when he enunciated
the view that "whatever strata were to be found in any part of England
the same remains would be found in it and no other." Moreover, the same
order of superposition was constant among the strata, as Werner, of whom
Smith knew nothing, had indeed taught. Smith was able to dictate a
_Tabular View of British Strata_ from coal to chalk with the
characteristic fossils, establishing an order that was found to obtain
on the Continent of Europe as well as in Britain.
He constructed geological maps of Somerset and fourteen other English
counties, to which the attention of the Board of Agriculture was called.
They showed the surface outcrops of strata, and were intended to be of
assistance in mining, roadmaking, canal construction, draining, and
water supply. It was at the time of William Smith's scientific
discoveries that the public interest in canal transportation was at its
height in England, and his study of the strata was a direct outcome of
his professional activity. He called himself a mineral surveyor, and he
traveled many thousand miles yearly in connection with his calling and
his interest in the study of geology. In 1815 he completed an extensive
geological map of England, on which all subsequent geological maps have
been modeled. It took into account the collieries, mines, canals,
marshes, fens, and the varieties of soil in relation to the substrata.
Public-domain text, read in full here on John Shaqi.
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