Capitolo 59
2 and 4 parts. I also have notes of the temperature of mines in
Cornwall, anything on the light of oil-gasoline and the reminiscences of
Swansea in a sight of Bay of Oswick. In November I frequented Teacher
The geologic lectures of Sedgwick.
"To of the time in this term I had a South letter of Mr (to whom me
supposes me I had written) respect to the difficulty of my telescope: him
it intimately knew Tulley, and I suppose that so the
the matter had been more fully known to him. He investigated then if I was able
visit him/it in the vacation in winter. I went accordingly from Buries, and
you/he/she was received by him to his/her house in the street of Blackman for a week or more
with great gentleness. He introduced me to Mr. Humphrey Davy and many
other London savans and shewed me a lot of London sights and the
Observatory in Greenwich. I also had a small practice with his really
tools. He was then on intimate terms with Mr Herschel
(after the Lord John Herschel), living then in London that came
every now and then to observe double stars. This was the first time that me
it the practical astronomy. It seems that me taken in loan his/her mountain
barometer. In the term in Lent I wrote to him respect to the deduction of
the parallax of Mars, from a comparison of the relative positions of
Mars and 46 Leonises, as observed from him and from Rumker to Paramatta. My
to work is on loose papers. I see that I have perfectly made exercise the
the interpolations, the effects of the uncertainty of longitude & the c., but I do
doesn't see if I have an end result.
"In January. 1824, to Playford that I was working on the effects to separate
the two lenses of an object-glass, and on some kind of eye-piece that
it would be necessary: also on the spherical aberrations and Saturn
figure. On my quires in Cambridge I was working on the effects of
separating the lenses of object-glass with the perspective to correct the,
secondary ghost: and in January. 31 I received some numbers (the indices
of refraction) from Mr Herschel, and he/she quotes to Fraunhofer