Part 27

Fraunhofer Studies, 235.

French Institute, 186.

Frost-crystals (q. v.), 23.

Furnaces, 101.

Galileo, 8, 121–123, 139, 140.

Gas: glowing, 44; in sun, 60.

Gas-jets, 40, 61, 68, 88.

Gassendi’s View, 172, 173.

Gelinck’s Observations, 80.

Geminids, 196.

Genii, 193.

Geographers and Geologists, 133.

Glare, 14, 18, 62–64.

Glass: spun, 26; globe, 145.

Glow-worms, 7, 117.

Good Hope Observations, 80.

Gould’s Researches, 80.

Grain, prices, 77, 80, 87. (See Corn, Sun-spots, Wheat.)

Gramarye, 92.

Grass-blades, 66, 72.

Grasses, 26.

Gravitation, 72, 203; negative, 215.

Great Bear, 207. (See Dipper, Polar.)

Green’s Maps, 130.

Greenwich Observatory, 2, 81, 82, 84, 85, 88, 89.

Gulliver’s Travels, 131, 132. (See Swift.)

Gunpowder, 186.

Guns, 135. (See Cannon-ball.)