10

myself.
I early became interested in a childish way in dynamics and physics, and my father's brother being a chemist, I must have been about twelve years old when I set up a chemical laboratory of my own and began to work through Liebig's hundred qualitative analysis and to make such things as vermillion both in the dry and in the wet way and to repeat a great many well-known processes of chemistry. A year or so later, I one day, in the room of my brother, five years older than myself, took up a copy of Whately's Logic and asked my brother what logic was. On receiving his answer, I stretched myself out upon his carpet, with the volume, and believe that within a few days I had tolerably mastered it. When I got to be a Freshman in college, the fact that we were seated in the class-rooms in alpha-