Is grateful for his note. Will take an early opportunity of placing JH's communication before his readers. Curious the oversight should not have been noticed before. Has no more details of David Brewster's instrument.
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Is grateful for his note. Will take an early opportunity of placing JH's communication before his readers. Curious the oversight should not have been noticed before. Has no more details of David Brewster's instrument.
On Monday he should receive the proof of his communication. Comments on this communication and how it will be presented.
Has been looking at JH's treatise on meteorology, especially the part relating to the barometrical formula. It seems that JH missed JL's paper on refraction published in Transactions of the Astronomical Society, and is therefore not aware of the true nature of P. S. Laplace's atmosphere; comments on this.
Does not possess the Transactions of the Astronomical Society, which contains JL's paper. Had to limit the scope of his article so could not deal with the point mentioned in JL's letter. Comments on P. S. Laplace's formula.
About the barometric formula for the measurement of heights.
Of course JH is right; regrets he gave him so much trouble. Hopes his own construction of P. S. Laplace's atmosphere is correct. Hopes JH's daughter had a prosperous journey.
Outlines advantages of erecting great reflector in Melbourne [WW's colony] for observation of southern nebulae.
Encourages GA to develop some experiments to study the electrical phenomenon [see GA's 1861-9-23] more carefully.
Asks JH to contribute to The Educational Times.
Encloses printed copies of letters received from Johann Lamont regarding apparatus for examining Galvanic currents in the earth; would like his comments on them. Gave lecture in Manchester on the eclipse.
Thanks for his information. Has been trying to obtain a copy of JH's Outlines Astr. Further queries regarding trade-winds.
Compares JH's 'stereoscopic phenakistiscope' (in 'Instantaneous Photography,' 1860) with AW's invention called 'Thaumatrope.' Suggests how to make moving pictures. 'Government Certificated [School] Masters' in England, Ireland, and Scotland should be enlisted to make meteorology observations.
AW's 'Thaumatrope' is ingenious, but applies only to periodic movement. JH aims to reproduce non-periodic motion. Commends AW's suggestion to employ government schoolmasters as meteorology observers.
JH's reply was first AW heard that 'Stereoscopic Thaumatrope' had already been made. Lists two requirements for workable system of enlisting government schoolmasters for meteorological observations. AW and fellow students are ready to assist.