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Ribbon
The diaphragm is in form like an inverted bowl
Figure shows the limit of full expiration and inspiration of the male, side view
Section of the head and throat locating the organs of speech and song, including the upper resonators
Abraham Lincoln
The Early House of Abraham Lincoln
Alexander H. Stephens
Edwin M. Stanton
Lyman Trumbull
The Fight Between The Monitor And The Merrimac
Type of Magneto Telephone
Polarized Ringer