Feb 20 1817 1
Two moveable points M & O, of which one describes the arc M.N, & the other the arc OP in the same time, have an equal or the same angular motion, tho’ the real motion of the point O be much [grea]ter 2 than that of the point M. as the arc O. P is greater than the M N [illustration]
Will you have any Erica seeds to sow in the greenhouse at Sir Gilbert’s 3
Explain within
London Feby twenty 1817 Auckland 4
Hy Fox Talbot Esqr
Normanton
Stamford –
Please cite as “TALBOT753,” in Ɛpsilon: accessed on