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Vinony

J[ohn] A[ugustus] Ockerson

No biography available.

Works (1)

Cover of Tables showing differences of level in feet, corresponding to a given angle, when the distance is read in metres, and for horizontal reductions, for use with stadia
Tables showing differences of level in feet, corresponding to a given angle, when the distance is read in metres, and for horizontal reductions, for use with stadia