BallR. S., “Preliminary description of the new photographic equatorial of the Cambridge Observatory”, Monthly notices of the Royal Astronomical Society, lix (1899), 152–5 (with illustration).
2.
TaylorH. D., “Description of a perfectly achromatic refractor”, Monthly notices of the Royal Astronomical Society, liv (1894), 328–37.
3.
RussellH. N., Determinations of stellar parallax (Carnegie Institution of Washington Publication 147, Washington, D.C., 1911).
4.
BellL., The telescope (New York, 1922), 122 (with illustration).
5.
SchlesingerF., “The Loomis coelostat telescope of the Yale University”, Popular astronomy, xxxi (1923), 77 and 251 (with illustration).
6.
StearnsC. L., “Trial of the Loomis Memorial Telescope for stellar photometry”, Transactions of the Astronomical Observatory of Yale University, iii (1926), 49–80, p. 53.
7.
PickeringW. H., The Moon (London, 1904), 89 (with illustration). See also PickeringW. H.. “A photographic atlas of the Moon”, Annals of the Harvard College Observatory, li (1903).