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Saturday Nov. 26-1881.
     Upon showing Dr. Bell the notes made upon pp. 9-10, he stated that he had had a similar arrangement in his mind for several years and had discussed with friends in Europe, and also with A.G.B.
     When the arrangement occurred to me (Wednesday Nov. 23) I was entirely ignorant of his having any ideas of this kind, as neither A.G.B. or he had ever mentioned them in my presence, so far as I can remember.
     Dr. Bell has since noted his arrangement in his notebook, and made some improvements in connection with it.
     The arrangement was suggested to me by seeing [[vertical pencil line drawn down outside of left margin]] a diagram of a transmitter in the Scientific American for May 8th 1880, the construction of which was as follows: [[hand drawn arrow to diagram on right of page labeled as follows:  Mouth-piece, Diaphragm, Carbon button attached to diaphragm, Carbon rod.,
Mercury for buoying up carbon so as to keep it in light and in contact with button. Simple Telephone Transmitter designed by Geo. M. Hopkins (See Sci. American for May 8th 1880 p 292)]]
     The mercury reservoir could be adjusted up and down so as to vary the pressure of the floating carbon pencil upon the button attached to the diaphragm.  The electric circuit passed through diaphragm, carbon button, carbon pencil, mercury, to a conductor at bottom of mercury reservoir.
     This arrangement was designed by Geo. M. Hopkins, and strikes me as being an excellent one.[[strikethrough]] arrangement. [[/strikethrough]]
Noted by S.T. Nov. 26-1881 [[/vertical pencil line drawn down outside of left margin]]