Mr. Bancroft had been trained in the business habits of the book trade, in which he had established himself in San Francisco as early as 1856.[60] He was at this time twenty-four years old, having been born of New England stock in Ohio in 1832, and having had already four years residence—since 1852—in San Francisco as the agent of an eastern bookseller. It was not till 1869 that he set seriously to work on his history, and organized a staff of assistants.[61] They indexed his library, which was now large (12,000 volumes) and was kept on an upper floor of his business quarters, and they classified the references in paper bags.[62] His first idea was to make an encyclopædia of the antiquities and history of the Pacific Coast; and it is on the whole unfortunate that he abandoned the scheme, for his methods were admirably adapted to that end, but of questionable application to a sustained plan of historical treatment. It is the encyclopedic quality of his work, as the user eliminates what he wishes, which makes and will continue to make the books that pass under his name of the first importance to historical students. In 1875 the first five volumes of the series, denominated by themselves _The Native Races of the Pacific States_, made their appearance. It was clear that a new force had been brought to bear upon historical research,—the force of organized labor from many hands; and this implied competent administrative direction and ungrudged expenditure of money. The work showed the faults of such a method, in a want of uniform discrimination, and in that promiscuous avidity of search, which marks rather an eagerness to amass than a judgment to select, and give literary perspective. The book, however, was accepted as extremely useful and promising to the future inquirer. Despite a certain callowness of manner, the _Native Races_ was extremely creditable, with comparatively little of the patronizing and flippant air which its flattering reception has since begotten in its author or his staff. An unfamiliarity with the amenities of literary life seems unexpectedly to have been more apparent also in his later work.