Note 141 — Chapter VII · STRUCTURE AND MOVEMENTS OF SUN-SPOTS.
Reading edition
Astr. and Astrophysics, vol. xi. p. 734; Astroph. Journ. vol. iv. p. 201. Cf. J. Halm, Annals Edin. Observatory, vol. i. p. 145.
Reading edition
Astr. and Astrophysics, vol. xi. p. 734; Astroph. Journ. vol. iv. p. 201. Cf. J. Halm, Annals Edin. Observatory, vol. i. p. 145.