Volume 1
13 Apr. 1876
Page
106
be greatly increased by such arrangement.
Noted April 13th 1876 by A.G.B.
Copied April 14th by M.G.H.
Saturday April 15th 1876
Free Reed R arranged as in Fig I. P- Plumbago M mercury.
Upon blowing into A the reed R vibrated and the sound was audible from z.
Visited various stereotyping and electro-typing establishments in Boston in search of ideas
Volume 1
15 Apr. 1876
Page
106