London: Royal Society of London, 1880. Three Quarter Leather. First Edition. x, 419 pp.; iv, 421-1092 pp. 51 plates. 4to. Recent brown three quarter leather bindings with five raised bands at spine, burgundy title patch with gold embossed titling, gold lines offsetting bands, decorative stamp in each compartment without titling. Numerous folding plates that illustrate articles. This article has a small tape repair at the foot of p. 767, a closed tear at the foot of p. 791, and a tape repair and subsequent tear from the trape at the head of p. 841. Pages were trimmed slightly when rebound. The occasional library stamp as it is an ex-library volume, rebound. Very Good.
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 Wiliam Huggins's paper on stellar sprectrum photography, "On the Photographic Spectra of Stars."