bibliogroup:"Proceedings of the American Academy of Arts and Sciences"

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.

Vol. 12 (from May 1876 to May 1877) includes: Researches in telephony / by A. Graham Bell.