Statistics for occurrence #1 of “Senator Mason” in chapter 25, page 405 of Horace Greeley, The American Conflict: A History of the Great Rebellion in the United States of America, 1860-65: its Causes, Incidents, and Results: Intended to exhibit especially its moral and political phases with the drift and progress of American opinion respecting human slavery from 1776 to the close of the War for the Union. Volume I.:

...erpetuation. This, too, would have been readily perfected, had the South evinced any inclination to be satisfied and pacified thereby. But it was very generally treated by them as of no value. Senator Mason , of Virginia, spoke of it derisively as, in substance, one of the planks of the Chicago [Republican] Platform. And the artillery of Secession soon dispelled all desire of, or motive for, ratifying ...
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