I have long shown my students the ability of *Lycopodium* or *Huperzia* spores
to ignite by sprinkling these into a flame of an alcohol lamp, and have told
them that these spores were once the source of the flash for photographic use,
before the advent of flash bulbs. My own observation is that the flame is very
yellow, and I wonder if they were supplemented with anything else.
Additionally, I'd like to construct the apparatus and show the students
!exactly! how this was done, but alas, I DON'T KNOW!
Does anyone have information or source of information that would allow me to
turn back the clock and demonstrate this process as it was done?
Jim Perry
University of Wisconsin - Fox Valley
Menasha, WI 54952-8002
414-832-2610
jperry at uwcmail.uwc.edu
