[Arthur Holmes, geologist, and Robert W. Lawson, Einstein's English translator.] Offprint, inscribed by the authors to Prof. C. G. Curtis: 'Lead and the End Product of Thorium. (Part II.)'

Arthur Holmes, A.R.C.S., B.Sc., F.G.S., Imperial College, London, and Robert W. Lawson, M.Sc., Radium Institute, Vienna
Publication details: 
'From the Philosophical Magazine [London], vol. xxix. May 1915.'

16pp, 8vo, paginated 673-688. Stitched into brown wraps, with typed white label on front cover. At the head of the front cover, in manuscript: 'II | Prof C. G. Curtis | With the Authors' Compliments.' The offprint in good condition, on lightly aged paper, the brown wraps aged and chipped, with small of back wrap torn away at rear. The only other copy of this offprint on OCLC WorldCat at Durham University.

[ Sir Frank Watson Dyson (1868-1939), Astronomer Royal. ] Autograph Note Signed ('F. W. Dyson') to 'Prof. Adams'

Sir Frank Watson Dyson (1868-1939), Astronomer Royal who introduced Greenwich time signals ('pips') and helped prove Einstein's theory of general relativity
Publication details: 
On letterhead of the Royal Greenwich Observatory. 1 July 1919.

1p., 16mo. In good condition. Reads: 'Dear Prof. Adams, | Will you give us the pleasure of your company at lunch at the Royal Observatory on July 8 at 1 o'clock?'

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