ELLA: a few!
The catelog was still there when I used it, but that was quite a while ago. I'll bet it's gone, now.
I'm sure we all know it was Thomas Jefferson who started the LOC by donating his library. I'm reading a book now where Jefferson and his love of learning and science plays an important part It's "A Professor, A President, and a Meteor" by Shaw. In 1807, a meteor fell in a Connecticut town, and a professor (Benjamin Silliman) from nearby Yale University started scientific observations to study the pieces and the event. The author claimed that this was the start of scientific research in the fledgling US. The president in the title is Jefferson, I haven't gotten far enough to see how he's going to come into it. But his love of and appreciation for science are well known.
Unfortunately the writing is poor, disorganized, VERY repititious, full of vague or misleading science. But an easy read, and very skimmable, full of interesting facts. Worth skimming through (to me anyway) I hadn't realized to what an extent religion and science were seen as enemies at that point (nothing to do with Darwin). Nor to what an extent the religious new Englanders hated jefferson because they thought he was an atheist (your wives and children won't be safe if he is elected!). Silliman's research on meteors was accepted partly because he was deeply religious, and always framed his results in religious terms.