Note 90 — Chapter V · HYDROGEN, HELIUM, AND CORONIUM.
Reading edition
Runge and Paschen, Nature, 26th Sept. 1895; Sitzungsberichte Berlin Akad. 20th June 1895; Astroph. Journ. vol. iii. p. 4; Maunder, Knowledge, vol. xix. p. 285.
Reading edition
Runge and Paschen, Nature, 26th Sept. 1895; Sitzungsberichte Berlin Akad. 20th June 1895; Astroph. Journ. vol. iii. p. 4; Maunder, Knowledge, vol. xix. p. 285.