In July, 1836, Audubon and John returned to America, to find that nearly everything in the way of books, papers, the valuable and curious things collected both at home and abroad, had been destroyed in New York in the fire of 1835, Mr. Berthoud's warehouse being one of those blown up with gunpowder to stay the spread of the fire. Mrs. Audubon and Victor remained in London, in the house where they had lived some time, 4 Wimpole St., Cavendish Square. After a few weeks in New York, father and son went by land to Charleston, pausing at Washington and other cities; and being joined by Mr. Edward Harris in the spring of 1837, they left Dr. Bachman's where they had spent the winter, for the purpose of exploring part of the coast of the Gulf of Mexico. This expedition they were assisted in making by Col. John Abert,[55] who procured them the Revenue cutter "Campbell." Fire having afterward (in 1845) destroyed the journals of this period, only a few letters remain to tell us of the coasting voyage to Galveston Bay, Texas, though the ornithological results of this journey are all in the "Birds of America." It was during this visit to Charleston that the plans were begun which led to the "Quadrupeds of North America," under the joint authorship of Audubon and Bachman.[56] In the late summer of 1837, Audubon, with John and his wife,--for he had married Maria, Dr. Bachman's eldest daughter,--returned to England, his last voyage there, and remained abroad until the autumn of 1839, when the family, with the addition of the first grandchild,[57] once more landed in America, and settled, if such wanderers can ever be said to settle, in New York, in the then uptown region of 86 White St. The great ornithological work had been finished, absolutely completed,[58] in the face of incredible delays and difficulties, and representing an amount of work which in these days of easy travel it is hard to comprehend. The "Synopsis" also was published in this year, and the indefatigable worker began at once the octavo edition of the "Birds," and the drawings of the quadrupeds. For this edition of the "Birds" Victor attended almost wholly to the printing and publishing, and John reduced every drawing to the required size with the aid of the camera lucida, Audubon devoting his time to the coloring and obtaining of subscribers.