“Though he would sometimes not touch a book for a week, he generally spent part of each day in reading…if he sat in the library an hour, he would have half a dozen volumes around him, on the table, on chairs and on the floor. He seemed to read a few pages here and a few pages there, and pass from place to place, from volume to volume…sometimes (though very rarely) he would get sufficiently interested in a volume to read it all.”