[ Ernst Engel, German statistician. ] Autograph Signature ('Dr. Engel') to manuscript letter, in German, to Frederick Martin, editor of the 'Statesman's Year-Book'.

Ernst Engel (1821-1896), German statistician and economist, commemorated by the Engel curve and the Engel's law
Publication details: 
Berlin, 27 July 1878. On letterhead of the 'Statistisches Bureau' of the Kingdom of Prussia.

2pp., 8vo. Heavily aged and creased, with slight damage to signature. 20 lines of text, neatly written out by a secretary. Concerning revisions to his entry in the volume. Scan supplied on request.

[Novello & Co., Limited, music publishers.] Autograph Letter Signed ('Novello & Co Ltd | W. C. H.') to Dr Carl Peters, informing him that he has money due to him from the sales of his uncle Carl Engel's 'Violin Family'.

'W. C. H.', Novello & Co., Limited, music publishers, London [Dr Carl Peters (1856-1918), German African explorer, nephew of Carl Engel (1812-1882), musicologist]
Publication details: 
On Novello & Co. letterhead, 1 Berners Street, W. London. 30 September 1898.

1p., 12mo. In good condition, on lightly-aged paper. Addressed to 'Dr. Carl Peters | 29 St James Street | W'. The letter reads: 'Dear Sir | We beg to inform you that we have a small amount due to you from the sales of your "Violin Family" by Carl Engel but, before forwarding same, we shall be glad to know whether the above is your correct address.'

Markham Sherwill's collection of autographs. Reprinted from 'The Alpine Journal,' November 1938.

Claire-Eliane Engel [Captain Markham Sherwill; William Upcott; Edward Bootle Wilbraham]
Publication details: 
London: Printed by Spottiswoode, Ballantyne & Co. Ltd., New-Street Sq., E.C.4. 1939.

Octavo: 9 pp. Stitched. In original grey printed wraps. Good. Inscribed by the author to the embryologist Sir Gavin de Beer ('For Mr. G. S. de Beer [sic] With my best wishes C. E. Engel'), author of 'Early Travellers in the Alps' (1930). The article describes the correspondence amassed by Sherwill (a friend of William Upcott) relating to his ascent of Mont Blanc in 1825, quoting from letters of Catharine Hutton, Charles Fellows, Edward Bootle Wilbraham, Martin Barry and Comte Henri de Tilly. 'In 1840 he presented it to the Bibliotheque Royale de France.

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