RADIOACTIVITY

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.

1p., foolscap 8vo. In fair condition, aged and worn, with stamp, label and shelfmark of the Board of Education Library. Signed in type at foot by 'T. GREGORY FOSTER, Ph.D., | Principal.' Laid out in the usual variety of types and point sizes. The poster gives details of the lectures and cost.

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'.