Quotes:Herschel, John Frederick William

Zirkoff, Boris

Herschel, Sir John Frederick William (1792-1871). *Familiar Lectures on Scientific Subjects. London and New York: Alexander Strahan and Co., 1866. xii, 507 pp.

Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 5, p. 375

Herschel, Sir John F. William (1792-1871). *Treatise on Astronomy. New ed., London, 1851.

Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 10, p. 418