Reports on Observations of the Total Eclipse of the Sun, August 7th 1869.
#A Total Eclipse of the Sun#: Reports on Observations of the Total Eclipse#1869#The Philadelphia Photographer#August#Prof. Henry Jackson Morton#Sol#Solar#Solar Eclipse Expedition#Magic Transistor#MagicTransistor#mtr#mtradio#Lithography#John C. Browne#Mount Pleasant Iowa#Eclipse#Mr. Edward L. Wilson#Prof. Henry Morton Ph.D.