This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1901 Excerpt: ...Turner (Mon. Not., LIV.315; Greenwich Observations, 1893; 167)... Lewis (Mon. Not., LIV, 315; LVI, 362; LIX, 408; LX, 500; Greenwich Observations, 1893, 167; 1895, 146; 1896, 150)... Boyer (Mon. Not., LIX, 408; LX, 500)... Bryant (Greenwich Observations, 1897, 175; Mon. Not., LX, 500)... Brown ((A. A'., 3645)... Coleman (Mem. R. A. S., LIU, 22)... J A comparison of these results with recent observations shows that the computed angular motion in recent years is more rapid than the observed. Madler (Dorpat Observations, XI, 55; XIII, 89, 134)... Dawes (Mem. R. A. S., XXXV, 206, 345)... Secchi (Catalogo di -32- Stelle Doppie, 18)... Winnecke, Lindemann, and Bruns (Pulkowa Observations, IX, 314)... Wilson (Mem. R. A. S., XLII, 74)... Seabroke and Smith (Mem. R. A. S., XLVI, 195)... Dundr (Mesuresd'/loiles doubles, 148,254)... Bigourdan (Paris Observations, 1883, H. 38; Bulletin Astronomique, XII, 310).. Engelmann (A. N., 2678)... Burnham (A. N., 3141; Pub. Lick Obsy., II, 70, 242)... Comstock (Pub. Washburn Obsy., X, 20)... Glasenapp (Elements in A. N., 3119; Mesures d't'toiles doubles, IV, 2, 33)... See (A. J., 359)... Hussey (A. /., 427)... Aitken (A. N., 3465)... Lewis (Mon. Not., LIX, 408; LX, 501)... Bryant (Mon. Not., LX, 501)... Brown (A. N., 3645)... Casey (A. N., 2417, 2434)... See (Evolution of Stellar Systems, 102)... Schiaparelli (MS.)... given. Nevertheless, he regarded it extremely probable that these stars form a physical system, and the recent observations show this to be the case. An inspection of the accompanying diagram appears to show that the companion has recently been in the vicinity of apastron, and that the next periastron passage may not occur until the lapse of many years. The period is now essentially unknown; the data are ...