If RC's formulas for sunspots are correct, then 'trade-wind theory' is challenged and sun's photosphere may behave as envelope circulating around sun according to laws of planetary motion. Questions formula relating to sunspot velocity.
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If RC's formulas for sunspots are correct, then 'trade-wind theory' is challenged and sun's photosphere may behave as envelope circulating around sun according to laws of planetary motion. Questions formula relating to sunspot velocity.
Describes a revolving eyepiece that could protect the eye from excess light in solar observation.
About family finances, JH's health, and activities around the house.
Some friction has arisen between JH and MH over finances, and JH apologizes; JH is describing the newly-acquired horse, and reports on mail received and the activities of the children.
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