Endnote 23
Part I, §21, l. 4.  sterres fixes, fixed stars; here the s again appears in a plural adjective of French derivation; see note above, to §5. 8.  In MSS. li. 3.3 and li. 1. 13 in the Cambridge University Library, is an interesting list of the 49 stars most usually placed upon the Astrolabe.  The stars which are represented by the points of the tongues in Fig. 2 are the same as those in the diagram from which Fig. 2 is copied, the original of which is in MS. A.  I have slightly altered the positions of the points of the tongues, to make them somewhat more correct.  The following is the list of the stars there shewn; most of their names are written in the MS.  Cf. footnote on p. 186.

Within the Zodiac.  In Aries, Mirach, or b Andromedæ, shewn by a short tongue above Aries; in Taurus, Algol, or b Persei, as marked; in Libra, Aliot or Alioth, i.e. e Ursæ Majoris (the third horse, next the cart, in Charles's Wain), as marked; also Alramech, Arcturus, or a Boötis, shewn by the tongue projecting above Libra; in Scorpio, Alpheta, Alphecca, or a Coronæ Borealis, as marked; in Sagittarius, Raz Alhagus, or a Ophiuchi, near Alpheta; in Capricornus, Altair or a Aquilæ and Vega or a Lyræ, as marked, whilst near Vega is the unmarked Arided, or a Cygni; and in Pisces, Markab or a Pegasi.

Without the Zodiac.  In Aries, under Oriens, the slight projection marks b Ceti or Deneb Kaitos, the Whale's Tail, and the next curiously shaped projection (with side-tongues probably referring to other stars) means Batnkaitos, the Whale's Belly, apparently z Ceti; next come the long tongue for Menkar or a Ceti, the Whale's Nose; the star Aldebaran or Bull's Eye, a Tauri; Rigel or b Orionis, Orion's Foot; Alhabor or Sirius, the Dog-star, marked by a rude drawing of a dog's head, the star itself being at the tip of his tongue; then Algomeisa, Procyon, or a Canis Minoris, marked by a tongue pointing to the left, whilst the long, broad tongue pointing upwards is Regulus, Kalbalased, or a Leonis; the small tongue above the letter I in the border is Alphard or Cor Hydræ.  Above Occidens, in Libra, the first tongue is Algorab or d Corvi, and the next Spica Virginis or Azimech; close to the 8th degree of Scorpio is a Libræ, and close to the beginning of Sagittarius is a small head, denoting the Scorpion, at the tip of the tongue of which is the bright Kalbalacrab or Antares. The last, a projection below the letter X, is Deneb Algebi or the Goat's Tail, i.e. d Capricorni.