Smithsonian miscellaneous collections . rom the year 1911 when the eighth cycle ends (seecurve D, fig. i), we find that the low phase, corresponding no doubtto deficient water supply, ended about 1896, Now referring to figure26 B of my paper Solar Radiation and Weather Studies , the lowl)hases of Lakes Huron and Erie also ended about 1896, and also46 years previously thereto, at the ends of the great droughts of theforties and the nineties of the nineteenth century in our NorthwesternStates. Does not this long-continued series of 46-year precipitationcycles at Fairlee plainly warn us of the pr
Smithsonian miscellaneous collections . rom the year 1911 when the eighth cycle ends (seecurve D, fig. i), we find that the low phase, corresponding no doubtto deficient water supply, ended about 1896, Now referring to figure26 B of my paper Solar Radiation and Weather Studies , the lowl)hases of Lakes Huron and Erie also ended about 1896, and also46 years previously thereto, at the ends of the great droughts of theforties and the nineties of the nineteenth century in our NorthwesternStates. Does not this long-continued series of 46-year precipitationcycles at Fairlee plainly warn us of the probable recurrence of a majordrought beginning soon after the year 1975, and lasting about 10years ? Quart. Journ. Roy. Met. Soc, vol. 62, p. 481, 1936. 1 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOLUME 95. NUMBER 20 INACTIVATION OF PLANT GROWTHSUBSTANCE BY LIGHT (With Two Plates) BY PAUL R. BURKHOEDER Department of Botany, Connecticut College AND EARL S. JOHNSTON Division of Radiation and Organisms, Smithsonian Institution ^ FEB t> r,.. (Publication 3403) CITY OF WASHINGTON PUBLISHED BY THE SMITHSONIAN INSTITUTION FEBRUARY 5, 1937 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOLUME 95, NUMBER 20 INACTIVATION OF PLANT GROWTHSUBSTANCE BY LIGHT (With Two Plates) BYPAUL R. BURKHOLDER Department of Botany, Connecticut College AND EARL S. JOHNSTON Division of Radiation and Organisms, Smithsonian Institution
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