N The 12 signs of the sun's anomaly;
O, P The first chapter ring representing the equatorial globe of the week, revolving from left to right;
Q The coming day indicated through the window;
R The second chapter ring; including the synodic-periodic measure of the tides, the days of the median lunar-synodic age, the signs and degrees of the signs for mean distance of the moon from the sun;
S Epicycle of the moon with signs of its anomaly;
T Head of the dragon (Cap. Draconis);
U Tail of the dragon (Cauda Draconis), for measuring eclipses of the earth and of the moon;
V Third chapter ring, with degrees of lunar latitude and some fixed stars;
W Fourth chapter ring, showing firmament of fixed stars, signs of the zodiac and degrees of the signs, the months of the year, and days of the months, revolving left to right for the course of a mean astronomical year;
X Adjustment marked Claudit (it closes) and Aperit (it opens) for disengaging dial work for the purpose of making astronomical experiments and computations;