“Thus, not merely what it can do, but the rate at which it can do it, has to be considered in estimating the value of photography as an ally in astronomy.” Agnes Mary Clerke book The System of the Stars Source: The System of the Stars (1890), p. 33.
“Comets encountering these precincts must be perplexed to decide between the two potentates claiming their allegiance, and perhaps on occasions pay their court to each in turns, throwing out tails, as they do so, in all sorts of anomalous and contradictory directions.” Agnes Mary Clerke book The System of the Stars Of the nature of any planetary system round the double star Alpha Centauri; p. 168. The System of the Stars (1890)