Lastly, in astronomy he is credited by Ptolemy with an explanation of the motion of the planets by a system of epicycles; he also made reseafches in the lunar theory, for which he is said to have been called Epsilon (e). [Please select]
This landslip (which had taken place since she had left home for her moonlight walk) had changed the shape of the cove into a figure something like the Greek epsilon. [Please select]
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