Immediately below [alpha] Arietis is the star [alpha] Ceti, towards the right of which (a little lower) is Mira, a wonderful variable. This star has a period of 331-1/3 days; during a fortnight it appears as a star of the 2nd magnitude,--on each side of this fortnight there is a period of three months during one of which the star is increasing, while during the other it is diminishing in brightness: during the remaining five months of the period the star is invisible to the naked eye. There are many peculiarities and changes in the variation of this star, into which space will not permit me to enter. Immediately above Mira is the star [alpha] Piscium at the knot of the Fishes' connecting band. This is a fine double, the distance between the components being about 3-1/2", their magnitudes 5 and 6, their colours pale green and blue (see Plate 5). Close to [gamma] Aquarii (see Frontispiece, Map 4), above and to the left of it, is the interesting double [zeta] Aquarii; the distance between the components is about 3-1/2", their magnitudes 4 and 4-1/2, both whitish yellow. The period of this binary seems to be about 750 years. Turning next towards the south-west we see the second-magnitude star [epsilon] Pegasi, some 40 deg. above the horizon. This star is a wide but not easy double, the secondary being only of the ninth magnitude; its colour is lilac, that of the primary being yellow. Towards the right of [epsilon] Pegasi and lower down are seen the three fourth-magnitude stars which mark the constellation Equuleus. Of these the lowest is [alpha], to the right of which lies [epsilon] Equulei, a fifth-magnitude star, really triple, but seen as a double star with ordinary telescopes (Plate 5). The distance between the components is nearly 11", their colours white and blue, their magnitudes 5-1/2 and 7-1/2. The primary is a very close double, which appears, however, to be opening out rather rapidly. Immediately below Equuleus are the stars [alpha]^{1} and [alpha]^2 Capricorni, seen as a naked-eye double to the right of and above [beta]. Both [alpha]^1 and [alpha]^2 are yellow; [alpha]^2 is of the 3rd, [alpha]^1 of the 4th magnitude; in a good telescope five stars are seen, the other three being blue, ash-coloured, and lilac. The star [beta] Capricorni is also a wide double, the components yellow and blue, with many telescopic companions. To the right of Equuleus, towards the west-south-west is the constellation Delphinus. The upper left-hand star of the rhombus of stars forming the head of the Delphinus is the star [gamma] Delphini, a rather easy double (see Plate 5), the components being nearly 12" apart, their magnitudes 4 and 7, their colours golden yellow and flushed grey.