Biblio
Export 2 results:
Author Title Type [ Year] Filters: Keyword is sun spot and Author is Douglass, A.E. [Clear All Filters]
“Indications Of A Rainy Period In Southern Peru”. Science. Science.
. 1892. Douglas, AE_Indications of a Rainy Period in Southern Peru_1892.pdf (3.22 MB)“A Photographic Periodogram Of The Sun-Spot Numbers”. The Astrophysical Journal, XL (No. 3). The Astrophysical Journal, .
. 1914. Douglass, AE_A Photographic Periodogram of the Sun-Spot Numbers_1914.pdf (7.69 MB)