LABORATORY

8vo: 11 pp. One diagram. Text clear and complete. In original printed wraps. Aged and in grubby white wraps with printed details of the paper. Two punch holes in inner margin. With ownership inscription by Ellis's father Abraham Charles Ellis: 'A. C. Ellis, 40 Belsize Park Gardens, NW3'. Ellis was co-author, with Rutherford and Chadwick, of 'Radiations from Radioactive Substances' (CUP, 1930), a work said by A. R.

8vo: 8 pp. With tables. In original green printed wraps. Lightly aged, but good, with two punch holes in inner margin. 'With the author's compliments' by Ellis on front wrap. Brief calculations in pencil at foot of last page. Ellis was co-author, with Rutherford and Chadwick, of 'Radiations from Radioactive Substances' (CUP, 1930), a work said by A. R.

8vo: 28 pp. Four figures and two tables. Lightly aged, but good. In original green printed wraps. Two punch holes in inner margin. 'With the compliments of the authors' by Aston on front wrap. Ellis was co-author, with Rutherford and Chadwick, of 'Radiations from Radioactive Substances' (CUP, 1930), a work said by A. R. Mackintosh ('The Third Man: Charles Drummond Ellis, 1895-1980', Notes and Records of the Royal Society of London, July, 1995) to have been 'often referred to as the "Bible" of nuclear physics', with Ellis's contribution to the work placing him 'third among equals'.

8vo: 6 pp. In green printed wraps. Lightly aged, but good. Two punch holes in inner margin. Ellis was co-author, with Rutherford and Chadwick, of 'Radiations from Radioactive Substances' (CUP, 1930), a work said by A. R. Mackintosh ('The Third Man: Charles Drummond Ellis, 1895-1980', Notes and Records of the Royal Society of London, July, 1995) to have been 'often referred to as the "Bible" of nuclear physics', with Ellis's contribution to the work placing him 'third among equals'.

8vo: 10 pp. Three figures. Lightly aged, but good. In original green printed wraps. Two punch holes to inner margin. 'With the compliments of the authors' by Ellis on front wrap. Ellis was co-author, with Rutherford and Chadwick, of 'Radiations from Radioactive Substances' (CUP, 1930), a work said by A. R. Mackintosh ('The Third Man: Charles Drummond Ellis, 1895-1980', Notes and Records of the Royal Society of London, July, 1995) to have been 'often referred to as the "Bible" of nuclear physics', with Ellis's contribution to the work placing him 'third among equals'.

8vo: 11 pp. Five figures. Good, on aged paper. In original green printed wraps. Two punch holes in inner margin. 'With the authors' compliments' by Wooster on front wrap. Ellis was co-author, with Rutherford and Chadwick, of 'Radiations from Radioactive Substances' (CUP, 1930), a work said by A. R. Mackintosh ('The Third Man: Charles Drummond Ellis, 1895-1980', Notes and Records of the Royal Society of London, July, 1995) to have been 'often referred to as the "Bible" of nuclear physics', with Ellis's contribution to the work placing him 'third among equals'.

Inventor and engineer (1870-1923), whose papers are held by the Royal Society. During the war Harker was in the Inventions Department of the Ministry of Munitions. One page, 12mo. Good, if slightly grubby. Docketed in pencil and bearing the Society's stamp. Reads 'I send herewith a short contribution to the discussion of Dr Flemings paper at which I was present but in which on account of lack of time I did not feel it desirable to take part verbally.' Signed 'J. A. Harker'.

Eminent British metallurgist (1874-1958). One page, quarto. Very good. 'I should have been pleased to take the chair at Professor Bragg's Lecture, but I have already undertaken to preside at a similar lecture by Professor Bragg [...] and to have the same Chairman on both occasions, the lectures dealing with the same subjects, would suggest that Metallurgy is very poorly represented in London. Would it be possible to get Sir Harold Carpenter to take the chair? I am sure that you will have a good Meeting, as Professor Bragg's lectures are always exceedingly interesting.' Signed 'C. H.

Novelist, short story writer and poet (1884-1954). Two pages, quarto. Very good, though dusty and with small staple holes to one corner. Docketed. Apologises for the late reply to the invitation to join the Society ('the oversight was due to the intervention of leave and other causes'). 'Though I am afraid that I shall not be able to avail myself to any great extent of the advantage offered by your Society, staff members of this Laboratory will doubtless be glad to attend your lectures as they have already done in the past.' Consequently he will offer himself for election. Signed 'F. B.