presentation by kevin Quintana August 12th - 2015

2. A modern replica pair of the type of split
bifocal spectacles known to have been worn by
Benjamin Franklin in the mid 1780s
Bifocals are
eyeglasses with
an upper and
lower half, the
upper for
distance, and the
lower for reading.

3. Gradual deterioration to focus
on close objects or to se small
letters.

4. “common element"
which he named
“electric fire”

8. 