Wilson etched the first two plates of his _American Ornithology_ before he had obtained an engraver or a publisher. In April, 1806, he resigned his school at Gray's Ferry to accept an editorial position on a _New American Cyclopædia_,[185] then in course of preparation, at a salary of $900 a year. Samuel F. Bradford, the publisher of this work, soon became interested in Wilson's projected _American Ornithology_ and agreed to publish it. It became the ambition of both author and publisher to produce the work in a superior style, and to make it as perfect and complete an American product as possible. Only the pigments used in coloring some of the plates were imported from Europe.[186] Wilson issued in April, 1807, an elaborate prospectus of his proposed _Ornithology_, in which he stated that the completed work would comprise ten volumes, to cost $120, and that it would be illustrated by plates, engraved and colored by hand, after the manner of a carefully prepared sample which was issued with the printed announcement. In September, 1808, as already intimated, the first volume of the _American Ornithology_[187] appeared in an edition of 200 copies. Wilson immediately started on a canvassing tour of New England, in the course of which he visited the principal towns and colleges, going east to Portland, Maine, and as far north as Dartmouth College, in New Hampshire, where President John Wheelock and the professors received him with marked attention. On this journey Wilson did not average one subscriber a day, and he was forced to conclude that he had "been mistaken in publishing a work too good for the country"; "it is a fault," he said, "not likely to be repeated, and will pretty severely correct itself." Daniel D. Tompkins, Governor of New York, coolly said to him: "I would not give one hundred dollars for all the birds you intend to describe," not even if "I had them alive"; but a future Governor of that State, De Witt Clinton, the friend of science and scientific men, gave him the substantial encouragement he craved. When his second volume was ready for issue, Wilson wrote to Bartram: "This undertaking has involved me in difficulties and expenses which I never dreamt of, and I have never yet received one cent from it. I am, therefore, a volunteer in the cause of Natural History impelled by nobler views than those of money."