Thomas Jefferson’s pocket notebooks, composed of erasable ivory plates on which he would write scientific observations and memoranda before copying them into notebooks in the evening.TumblrThomas Jefferson’s pocket notebooks, composed of erasable ivory plates on which he would write scientific observations and memoranda before copying them into notebooks in the evening.Tumblr
Thomas Jefferson’s pocket notebooks, composed of erasable ivory plates on which he would write scientific observations and memoranda before copying them into notebooks in the evening.Tumblr