Bret Harte trimmed and trained and schooled me patiently until he changed me from an awkward utterer of coarse grotesqueness to a writer of paragraphs and chapters that have found a certain favor in the eyes of even some of the very decentest people in the land.[32] To the _Californian_ and the _Era_ he now contributed that series of sketches which later was drawn upon for material for his first published book. But the old restlessness was upon him again. He struck out into the Tuolumne Hills with Jim Gillis as a pocket miner and for months lived as he could in shacks and camps, panning between drenching showers worthless gravel, expecting every moment to find gold. He found no gold, but he found what was infinitely richer. In later years in a letter to Gillis he wrote: It makes my heart ache yet to call to mind some of those days. Still it shouldn't, for right in the depths of their poverty and their pocket-hunting vagabondage lay the germ of my coming good fortune. You remember the one gleam of jollity that shot across our dismal sojourn in the rain and mud of Angel's Camp--I mean that day we sat around the tavern and heard that chap tell about the frog and how they filled him with shot. And you remember how we quoted from the yarn and laughed over it out there on the hillside while you and dear old Stoker panned and washed. I jotted the story down in my note-book that day, and would have been glad to get ten or fifteen dollars for it--I was just that blind. But then we were so hard up. I published that story, and it became widely known in America, India, China, England, and the reputation it made for me has paid me thousands and thousands of dollars since.[33] The publication in New York, May 1, 1867, of _The Celebrated Jumping Frog of Calaveras County and Other Sketches_ and the delivery a week later by the author of _The Jumping Frog_ of a lecture on the Sandwich Islands marks the end of the period of preparation in Mark Twain's life. A new American author had arrived. III