I met my daily reading quotas since switching topics on the history term paper. I finished reading and annotating my primary source yesterday.
That is about 225 sticky tabs marking important passages in that 276-page book. I wrote a little note on each of them explaining what is important about that particular sentence or paragraph.
I also got a fourth source from a hidden back shelf of the mathematics library: Babbage's own . It is a tattered old tome containing 36 chapters of humorous anecdotes and philosophy. All the other books quote from it, and so will I. The title page says it was published in 1864. It looks like someone put in a poor effort of rebinding it since then, but I would not be at all surprised if the pages are really that old. They are brittle, yellowed and falling out in places. It is an interesting feeling to hold a book from the same time period as the very person I am writing about.

