In geometry my chief difficulty was that I had always been accustomed to read the propositions in line print, or to have them spelled into my hand; and somehow, although the propositions were right before me, I found the braille confusing, and could not fix clearly in my mind what I was reading. But when I took up algebra I had a harder time still. The signs, which I had so lately learned, and which I thought I knew, perplexed me. Besides, I could not see what I wrote on my typewriter. I had always done my work in braille or in my head. Mr. Keith had relied too much on my ability to solve problems mentally, and had not trained me to write examination papers. Consequently my work was painfully slow, and I had to read the examples over and over before I could form any idea of what I was required to do. Indeed, I am not sure now that I read all the signs correctly. I found it very hard to keep my wits about me.