s outline referring to each chapter should be examined
at the close of the reading, and this mere sketch filled up to a
perfect picture from recollection.

I. _Creative Processes._--The dial-plate of the sky. Cause or different
weights--on sun, moon. Two laws of gravity. Inertia. Fall of earth
to sun per second. Forward motion. Elastic attraction. Perturbation
of moon; of Jupiter and Saturn. Oscillations of planets.

II. _Light._--From condensation. Number of vibrations of red; violet.
Thermometer against air. Aerolite against earth. Two bolides against
the sun. Large eye. Velocity of light. Prism. Color means different
vibrations. Music of light. Light reports substance of stars. Force
of; bridge, rain, dispersion, intensities, reflection, refraction,
decomposition.

III. _Astronomical Instruments._--Refracting telescope. Reflecting;
largest. Spectroscope. Spectra of sun, hydrogen, sodium, etc. E
made G by approach; C by departure. Stars approach and recede.

IV. _Celestial Measurements._-Place and time by stars. Degrees,
minutes, seconds. Mapping stars. Mural circle. Slow watch. Hoosac
Tunnel. Fine measurements. Sidereal time. Spider-lines. Personal
equation. Measure distance--height. Ten-inch base line. Parallax
of sun, stars. Longitude at sea. Distance of Polaris, a Centauri,
61 Cygni. Orbits of asteroids.

V. _The Sun._--World on fire. Apparent size from planets. Zodiacal
light. Corona. Hydrogen--how high? Size. How many earths? Spots:
1. Motion; 2. Edges; 3. Variable; 4. Periodic; 5. Cyclonic; 6.
Size; 7. Velocities. What the sun does. Experiments.

VI. _The Planets from Space._--North Pole. Speed. Sizes. Axial
revolution. Man's weight on. Seasons. Parallelism of axis. Earth
near [Page 277] sun in winter. Plane of ecliptic. Orbits inclined
to. Earth rotates. Proof. Sun's path among stars. Position of
planets. Motion--direct, retrograde. Experiments.

VII. _Meteors._--Size; number; cause of; above earth; velocity;
colors; number in space; telescopic view of. Aerolites: Systems
of; how many known. Comets: Orbits; number of comets; Halley's;
Biela's lost; Encke's. Resisting medium. Whence come comets? Composed
of what? Amount of matter in. [Symbol].

VIII. _The Planets._--How many? Uranus discovered? Neptune? Asteroids?
Vulcan? Distance from sun. Periodic time. Mercury: Elements; shapes,
as seen from earth; transits. Venus: Elements; seen by day; how
near earth? how far from? phases; Galileo. Earth: Element