As of July 11, 2022, most library locations and the Smithsonian Archives Reading Room are open to the public by appointment. Request an appointment
by using Contact Us. For more information see Library Locations and Smithsonian Institution Archives Reference.
![Cover of Electricity [and] magnetism](https://library.si.edu/sites/default/files/styles/book_cover_160w/public/books/covers/electricitymagn00leyc_cover.jpg?itok=sRQVR_Zi "Cover of Electricity [and] magnetism")
![Cover of Fisica gener[a]le e sperim[enta]le](https://library.si.edu/sites/default/files/styles/book_cover_160w/public/books/covers/Fisicagenerlees00More_cover.jpg?itok=4cTZhR0e "Cover of Fisica gener[a]le e sperim[enta]le")
![Cover of Geometrical problems for the construction of dials ; Tables and rules for finding Easter, gold[en] numbers, epact, dom[inical] letter, &c, &c, &c., vo](https://library.si.edu/sites/default/files/styles/book_cover_160w/public/books/covers/geometricalprob00walk_cover.jpg?itok=lUOuGJM7 "Cover of Geometrical problems for the construction of dials ; Tables and rules for finding Easter, gold[en] numbers, epact, dom[inical] letter, &c, &c, &c., vo")
