1855. 12 p.; 21 cm. Baker Collection no. 352. "From the Journal of the Statistical Society of London, June, 1855." "Read before the Statistical Section of the British Association for the Advancement of Science, at Liverpool, 23rd September, 1854."
Hartford, Conn. : H. & F. J. Huntington, 1830. vi, 54 p. : ill. ; 16 cm. " ... originally prepared for the Deaf and Dumb ... " The author was the founder and principal of the American School for the Deaf. Baker Collection no. 163.