RESONANCE THEORY: "On the Secular Changes in the Elements of the Orbit of a Satellite Revolving About a Tidally Distorted Planet." (Philosophical Transactions of the Royal Society of London, Vol. 171 for the Year 1880 Part I & Part II, pp. 713-891).
London: Royal Society of London, 1880. Hardcover. First Edition. x, 419 pp.; iv, 421-1092 pp. 51 plates. 4to. Library binding, tan leather spine with gold embossed titling. Interiors clean, ex-library stamp on title page, and occurring sporadically within. Numerous folding plates that illustrate articles. Pages were trimmed slightly when rebound.
George H. Darwin's (1845-1912) "Resonance Theory" of the origin of the moon, according to which the moon might have originated from the fission of a parent earth as the result of an instability produced by resonant solar tides. Also contains William Huggins's paper on stellar spectrum photography, "On the Photographic Spectra of Stars." Very Good. More