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Brass parallactic rules, which revolved in azimuth above a brass horizon, twelve feet in diameter. A half sextant, of four cubits radius. A steel sextant. Another half sextant, with steel limb, four cubits radius. The parallactic rules of Copernicus. Equatorial armillaries. A quadrant of a solid plate of brass, five cubits in radius, shewing every ten seconds.
In the museum was the large globe made at Augsburg, see p. 134. In the Stiern-berg Observatory. In the central part, a large semicircle, with a brass limb, and three clocks, shewing hours, minutes, and seconds. Equatorial armillaries of seven cubits, with semi-armillaries of nine cubits. A sextant of four cubits radius.
A geometrical square of iron, with an intercepted quadrant of five cubits, and divided into fifteen seconds. A quadrant of four cubits radius, shewing ten seconds, with an azimuth circle. Zodiacal armillaries of brass, with steel meridians, three cubits in diameter. A sextant of brass, kept together by screws, and capable of being taken to pieces for travelling with. Its radius was four cubits.
A sextant of the same materials and size. A quadrant of one and a half cubits radius, and an azimuth circle of three cubits. Ptolemy's parallactic rules, covered with brass, four cubits in the side. The sextant already described in page 134. Another quadrant, like No. 3. Zodiacal armillaries of melted brass, and turned out of the solid, of three cubits in diameter.
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