[ivj COSMOS. 



Continental and insular climates. East and west coasts. C'aase of th 

 curvature of the isothermal lines. Limits of perpetual snow. Quantity 

 of vapour. Electricity in the atmosphere. Forms of the clouds 

 pp. 316-347. 



i. Separation of inorganic terrestrial life from the geography of vital 

 organisms; the geography of vegetables and animals. Physical grada- 

 tions of the human race (pp. 347-369). 



Special Analysis of the Delineation of Nature, including references to 

 the subjects treated of in the Notes. 



L Celestial portion of the Cosmos pp. 67-145 



The universe and all that it comprises multiform nebulous spots, 

 planetary vapour, and nebulous stars. The picturesque charm of a 

 southern sky (note pp. 68-9). Conjectures on the position in space of 

 the world. Our stellar masses. A cosmical island. Gauging stars. Double 

 stars revolving round a common centre. Distance of the star 61 Cygni 

 (p. 72 and note). Our solar system more complicated than was conjee- 

 hired at the close of the last century. Primary planets with Neptune, 

 Astrea, Hebe, Iris, and Flora, now constitute 16; secondary planets 18; 

 myriads of comets, of which many of the inner ones are enclosed in the 

 orbits of the planets; a rotating ring (the zodiacal light) and meteoric 

 stones, probably to be regarded as small cosmical bodies. The teles- 

 copic planets, Vesta, Juno, Ceres, Pallas, Astrea, Hebe, Iris, and Flora, 

 with their frequently intersecting, strongly inclined, and more eccentric 

 orbits, constitute a central group of separation between the inner plane- 

 tary group (Mercury, Venus, the Earth, and Mars), and the outer 

 group (Jupiter, Saturn, Uranus, and Neptune). Contrasts of these 

 planetary groups. Relations of distance from one central body. Dif- 

 ferences of absolute magnitude, density, period of revolution, eccentri- 

 city and inclination of the orbits. The so-called law of the distances 

 of the planets from their central sun. The planets Avhich have 

 the largest number of moons (p. 80 and note). Relations in space 

 both absolute and relative of the secondary planets. Largest and 

 smallest of the moons. Greatest approximation to a primary planet. 

 Retrogressive movement of the moons of Uranus. Libration of the 

 Earth's satellite (p. 83 and note). Comets; the nucleus and tail; 

 i'arious forms and directions of the emanations in conoidal envelopes with 

 more or less dense walls. Several tails inclined towards the sun; change 

 of form of the tail ; its conjectured rotation. Nature of light. Occul- 

 tations of the fixed stars by the nuclei of comets. Eccentricity of their 

 orbits and periods of revolution. Greatest distance and greatest ap- 

 proximation of comets. Passage through the system of Jupiter's satel- 

 lites. Comets of short periods of revolution, more correctly termed 

 inner comets (Enke, Biela, Faye) (p. 94 and note.) Revolving aero- 

 lites (meteoric stones, fire balls, falling stars). Their planetary velocity, 

 magnitude, form, observed height. Periodic return in streams; the 

 November stream and the stream of St. Lawrence. Chemical compo- 

 sition of meteoric asteroids (p. 117 and note*. Hii)g of zodiacal 



