1To Thomas Jefferson from John Alexander, 8 November 1803 (Jefferson Papers)
I have taken the liberty of writing to you, on a subject which I deem will be of use to the Citizens of America in general, and to the American youth in particular. Having been for many years employed in the Study & instruction of the Mathematics, I have found great inconvenience, as well as expense, arising to Students, in procuring books on the different branches in which they have been...