Report to the committee of the meteorological office on the use of isobaric curves and a line of greatest barometric change in attempting to foretel winds... : with some practical suggestions for seamen, and a few remarks on Buys Ballot's law
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Published under the authority of Great Britain's Meteorological Committee, Toynbee devised the use of isobaric curves to prove the value of the knowledge that the direction and force of "ordinary" winds were related to barometric differences.