[24] See “Strontium” in Chemistry.
[25] He was obliged to recant before the Inquisition, and to repudiate his researches. He was released on the condition of observing silence upon the theory he had supported, but again obliged to recant.
[26] The bright part of the sun.
[27] Mr. Burnham has lately given a list of two hundred and fifty-one new double stars, and in the Astronomical Society’s proceedings there is a list of ten thousand.
[28] It might reach 14,000,000 of miles at a maximum.
[29] “Physical Causes of Change of Climate,” _Phil. Mag._, 1864.
[30] See Dawkins’ “Early Man in Britain.”
[31] From Artois, where the first European well of this kind existed.
[32] Those who wish to study the subject fully should read “Corals and Coral Reefs,” by the late Charles Darwin, and Dana’s “Coral Islands.”
[33] See “Molecular Physics” (Tyndall).