The sun and the welfare of man /
Abbot, Charles Greeley, n. 1872.
The sun and the welfare of man / by Charles Greeley Abbot. - 6 páginasl., 368 p. : color front., illus. (incl. charts) 83 pl. (incl. ports., facsim.) on 53 l., diagrs. ; 23 cm. - Smithsonian scientific series ; v. 2. .
Smithsonian institution. Astrophysical observatory.
Astrofísica.
Espectro solar.
Radiación solar.
QB531 / .A25 1943
The sun and the welfare of man / by Charles Greeley Abbot. - 6 páginasl., 368 p. : color front., illus. (incl. charts) 83 pl. (incl. ports., facsim.) on 53 l., diagrs. ; 23 cm. - Smithsonian scientific series ; v. 2. .
Smithsonian institution. Astrophysical observatory.
Astrofísica.
Espectro solar.
Radiación solar.
QB531 / .A25 1943