Original General Electric caption:
"Diesel Oil is combined with air in a new General Electric fuel cell,
generating electricity directly to power the motor at right. Pouring the fuel (commercial
18-cents-a-gallon diesel oil, simply purified) is Dr. Thomas Grubb, pioneer with Dr. Leonard
Niedrach (left) in the development of the first fuel cell to operate successfully with a
broad range of inexpensive hydrocarbon fuels at moderate temperatures. The new cell has
been operated with a variety of other common liquid fuels as well as such gaseous
hydrocarbon fuels as propane and natural gas."
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