The Kabbala: the true science of light; an introduction to the philosophy and theosophy of the ancient sages. Together with a chapter on Light in the vegetable kingdom (1877)
Pancoast, S. (Seth), 1823-1889 · Philadelphia : J. M. Stoddart & Co · leaf 118
d electricity from thesurrounding air; his observations covered a period offive years and included 15,170 quantities; of these, LIGHT IN ATMOSPHEKIC ELEOTJRICITY, ETC. 105 14,515 are of positive and 655 of negative electricity.He took his observations at the even hours, Greenwichmean time,… … Midnight.Plate III.—Variations in Electricity of the Atmosphere. from which hour the increase is. more rapid, so that at8 it is more than double what it is at 6; it then in-creases more slowly until 10, when it has attained its 106 BLUE AND RED LIGHT. first or morning maximum; it then diminishes…
Cabala · Light
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-356-201.webp)
