. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 126 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1911. The strength of the received waves remams as a rule steady during daytime. Shortly after sunset at Clifden they become gradually weaker, and about two hours later they are at their weakest. They then begin to strengthen again, and reach a very high maximum at about the time of sunset at Glace Bay. They then gradually return to about normal strength, but through the night they are very variabl
. Annual report of the Board of Regents of the Smithsonian Institution. Smithsonian Institution; Smithsonian Institution. Archives; Discoveries in science. 126 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1911. The strength of the received waves remams as a rule steady during daytime. Shortly after sunset at Clifden they become gradually weaker, and about two hours later they are at their weakest. They then begin to strengthen again, and reach a very high maximum at about the time of sunset at Glace Bay. They then gradually return to about normal strength, but through the night they are very variable. Shortly before sunrise at Clifden the signals commence to strengthen steadUy, and reach another liigh maximum shortly mRLATION OP SIGNALS AT CLIFDEN mOM MAY 1910 TO APRIL 1911 curve: for fjrst day of EACH MONTH BE INS DATE. jnmiNc APiiiL imi gj—xi. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Board of Regents; United States National Museum. Report of the U. S. National Museum; Smithsonian Institution. Report of the Secretary. Washington : Smithsonian Institution
Size: 854px × 2926px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
