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That Ptolemy's Jaba-dib or dio was intended, however vaguely, for the island of Java, cannot be doubted. It must have been known to the Arabian merchants, and he was indefatigable in his inquiries; but at the same time that they communicated the name they might be ill qualified to describe its geographical position.
It then gives Ptolemy's own great discovery that which has made his name immortal the discovery of the moon's evection or second inequality, reducing it to the epicyclic theory. It attempts the determination of the distances of the sun and moon from the earth with, however, only partial success.
In the middle of the ninth century Albategnius, a Syrian prince, improved the value of excentricity of the sun's orbit, observed the motion of the moon's apse, and thought he detected a smaller progression of the sun's apse. His tables were much more accurate than Ptolemy's. Abul Wefa, in the tenth century, seems to have discovered the moon's "variation."
The cloth From which humanity is cut is woven of The warp and woof of circumstance, and all Are much alike. We spring from out the mantle, Earth, And hide at last beneath it; in the interim Our acts are less of us than it. We are No judge, then, of thy sins, thou ending link Of Ptolemy's chain.
It considers the precession of the equinoxes, the discovery of Hipparchus, the full period of which is twenty-five thousand years. It gives a catalogue of 1,022 stars, treats of the nature of the milky-way, and discusses in the most masterly manner the motions of the planets. This point constitutes another of Ptolemy's claims to scientific fame.
The Polydores wouldn't be interested, in the least, in knowing he had a niece unless she happened to know something about antiques, and if he should describe her children, she wouldn't recognize them." After luncheon I went out on the porch. While I sat there, the mail carrier came along and handed me a letter a returned letter. It was directed in Ptolemy's round hand to Mr. Issachar Innes.
And though he had brought with him several of Ptolemy's stewards, who could testify to his integrity, and stop the mouths of enemies and false accusers, yet the loss annoyed him, and he was vexed with himself about the matter, as he had designed them not so much for a proof of his own fidelity, as for a pattern of exactness to others.
The foundation of the museum and library of Alexandria, both of which contributed so essentially to science and to the establishment of the Alexandrian school of philosophy, which, as we shall afterwards perceive, produced men that greatly advanced geographical knowledge, is another proof of the wise and comprehensive character of Ptolemy's mind.
Astronomical observations would thus have become much easier to use, while those registered under the ancient system could only be employed after long and difficult calculations. A reason is thus given for Ptolemy's contentment with so comparatively modern a date.
At this time king Lysimachus, an eager partisan of Antipater, was too much occupied with other matters to send him any material help, but, knowing that Pyrrhus would never disoblige or thwart Ptolemy in anything, sent a forged letter to him, in which it was stated to be Ptolemy's desire that he should withdraw his forces on the receipt of three hundred talents from Antipater.
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