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In writing today I wish to mention to you that I have been very rigorously observing the <hi rend="underline">positions</hi> of the Solar spots for the last 4 years, taking every opportunity for the <unclear>-pess</unclear> which my <unclear></unclear> has afforded and which have not been lost by absences from home, opportunities which have averaged about 225 days a year. My mode of observation* is exactly described in No 5. Vol XIV of the R.A.S. Monthly Notices, and my mode of <unclear>reduction</unclear> in No 6. Vol XV, with a detailed specimen of <unclear>reduction</unclear> and examples illustration of precision. This method of</p> | In writing today I wish to mention to you that I have been very rigorously observing the <hi rend="underline">positions</hi> of the Solar spots for the last 4 years, taking every opportunity for the <unclear>-pess</unclear> which my <unclear></unclear> has afforded and which have not been lost by absences from home, opportunities which have averaged about 225 days a year. My mode of observation* is exactly described in No 5. Vol XIV of the R.A.S. Monthly Notices, and my mode of <unclear>reduction</unclear> in No 6. Vol XV, with a detailed specimen of <unclear>reduction</unclear> and examples illustration of precision. This method of</p> | ||
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| − | *(which requires rather a large flat field and low power) | + | *(which requires rather a large flat field and low power) |
Revision as of 02:59, 5 October 2020
long by the booksellers' channels. I shall be very glad, if I do not ask too much, to receive from you in return a copy of your own last -hum of observations, your Memorie del Nuovo Osservatorio del C. R, 1852-1855, containing your physical observations of the Sun in reference to distribution of heat, researches with which I desire to be better acquainted.
In writing today I wish to mention to you that I have been very rigorously observing the positions of the Solar spots for the last 4 years, taking every opportunity for the -pess which my has afforded and which have not been lost by absences from home, opportunities which have averaged about 225 days a year. My mode of observation* is exactly described in No 5. Vol XIV of the R.A.S. Monthly Notices, and my mode of reduction in No 6. Vol XV, with a detailed specimen of reduction and examples illustration of precision. This method of
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*(which requires rather a large flat field and low power)
