Fényi, solar observations, [184] [204]
Ferrel, tidal friction, [272]
Ferrer, nature of corona,[ 67];
prominences,[ 69]
Fessenden, electrical theory of comets, [348]
Finlay, transit of great comet, [358] [360]
Fizeau, daguerrotype of the sun, [153];
Doppler's principle, [201]
velocity of light, [232]
Flammarion, canals of Mars, [280];
trans-Neptunian planet, [306]
Flamsteed, solar constitution,[ 57];
distance, [228]
Flaugergues, detection of 1811 comet,[ 99];
transit of Mercury, [244]
Fleming, Mrs., spectrum of β Lyræ, [379];
preparation of Draper Catalogue, [386]
discoveries of new stars, [399]