480. Its predicted and observed places 481. Corrected elements of the planet's Tune, near Sarpsborg, Norway 302 520. Observations of Messrs. Stephen- Observations of Mr. Lassell, at 483. Comparison of the effects of the real and predicted planets ib. 484. No part of the merit of this dis- 285 523 Effects of total obscuration on nery - 485. Period 486. Distance from the sun 487. Relative orbits and distances of ib. ib. 488. Apparent and real diameters ib. ib. 490. Mass and density 286 491 Apparent magnitude of the sun |