Not but that I was a?oat in a safe craft, for the Martinez was a new ferry-steamer, making her fourth or fifth trip on the run between Sausalito and San Francisco. The danger lay in the heavy fog which blanketed the bay, and of which, as a landsman, I had little apprehension. In fact, I te member the placid exaltation with which I took up my position on the forward upper deck, directly beneath the pilot-house, and allowed the mystery of the fog to lay hold of my imagination. A fresh breeze was blowing, and for a time I was alone in the moist obscurity — yet not alone.