566 HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, VV. 



11384 MAaUENNE (Leon) Les Sucres et leiirs principaux Derives, 8vo. (pp. 1032), cl., Is 6d 

 (p F. 16. nett) 1900 



This valuable work consists of a rt'Aitme of all the scientific researches on sugar which had hitherto been dispersed 

 throughout the scientific journals of the various nations. 



MARAT SAVANT : 



11385 [MARAT (Jean Paul, Docteur en Medecine et Medecin des Gardes-du-Corps de Monseigneur 

 le Comte d'Artois ; M.D. of ISt. Andrews : killed hy Charlotte Corday)'] Memoire siir I'Electricite 

 Medicale, couronne le 6 Aoiit 1783, par I'Acad^mie Royale des Sciences, Belles- Lettres et Arts 

 de Rouen, 8vo. sewn (rare), 15* 1784 



This work has the merit of being one of the first to treat soberly the subject of electro-therapeutics at a time when 

 electricity was thought to be a panacea for every known disease, and when generally far more harm (referred to on p. 100, 

 than good was done by the, electrical enthusiasts. 



11386 [ ] Notions Elementaires d'OPTlQUE ; with 2 copperplates, 8vo. boards, uncut {slightly 



water-stained) ; RARE, £1. 1* Didot, 1784 



Though now chiefly known as one of the most hideous monsters of the Terror, and as the author of L'Ami dv, Peuple, 

 the revolutionary journal, Marat was previously the author of works of no small scientific value. He was one of the first 

 to attack Newton's emission theory of light— a heresy which prevented his election to the French Academy. He 

 translated Newton's Opticks into French (q. v. post). 



The above work gives the author's own theory — a curious variety of the corpuscular one. 



[ ] Optique de Newton, Traduction Nouvelle, faite par M*** (1787)— v. Newton, post. 



11387 Recherches Physiques sur TElectricite ; with 5 folding plates, 8vo. sewn (YERy 



RARE), £1. I5s ' 1782 



This, like the rest of the author's works, is full of original ideas and experiments. Pp. 345-53 contain an interesting 

 chapter, ' Des Ph6nomenes electriques relatifs a I'Ebranlement de la Lumiere,' in which he attempts an explanation of the 

 phenomena. 



11388 Physische Untersuchungen uber die Elektricitat, iibersetzt, mit Anmerkungen, 



von C. E. Weigel ; with 5 folding plates, 8vo. boards, with auto, of C. G. Eschenbach {Prof. 

 Chemistry, Univ. Leipzig, 1753-1831), 12s Qd Leipzig, 1784 



11389 Recherches Physiques sur le Feu ; with 7 folding plates, 8vo. sewn (rare), 



£1. 5* 1780 



11390 Another Copy, boards, uncut ; or, hf. cl. {both nice clean copies), £1. 8s %d 



In this work the author attempts to give, by his theory of a Jlnide igne, a mechanical explanation of the phenomena 

 of heat. 



Marat stayed many years in England, and some time, as a teacher of French, in Edinburgh, where he published in 1774 

 a revolutionary pamphlet ' The Chains of Slavery.' On the recommendation of certain Edinburgh physicians he received 

 the degree of M.D. from St. Andrews University. According to Chambers's EncyclopHidia, he was already dying of 'a 

 loathsome skin disease ', contracted while hiding in the sewers of Paris from Lalayette'.s police, when he received his 

 death-blow from Charlotte Corday. The last two works contain the Privilege from Louis XVI. to his ' bien ame, le 

 sieur Marat', who afterwards was the most ruthless promoter of his murder. 



All his scientific works are now very rare. 



11391 Physische Untersuchungen iiber das Feuer, iibersetzt, mit Anmerkungen, von 



Christian Ehrenfrieu Weigel, 8vo. sewn, 6s 6d Leipzig, 1782 



11392 MARAVIGNA (C.) Tavole Sinottiche dell' Etna, che comprendono la Topografia, la 

 Descrizione de' Fenomeni, la Storia delle Eruzioni e la Mineralogia di questo Vulcano, Edizione 

 2*1% accresciuta, folio folded to 8vo. unbound, Ss 6d Parigi, 1838 



11393 MAKCELLI (Hercole, da Matelica) Opera nuovamente coraposta, nella quale si contengono 

 8 Modi di Tariffe sopra delli dui nobillissimi Metalli, cioe, Oro et Argento; de diverse Bonta, 

 overo FiNEZZE, co li loro limitati Pregi, secondo il Costume di Vinetia; with woodcut title, 

 device at end, woodcuts, and numerous pretty woodcut initials, 12mo. old hf. vellum {some II. 

 water-stained, and one slightly defective) ; very rare, £2, hs 



[col. :] Venetia, per Francesco Marcolini, 1556 

 A very rare work, known to Riccardi (who is unable to give a collation or full description) only by repute, and unknown 

 to Poggendorff", Brunet, Graesse, and other bibliographers. There was no copy in the Libri Library. 



11394 MARCET (Alexander John Gaspard, m.d., f.r.s. ; husband of Mrs. Jane Marcet) 

 Chemical Account of an Aluminous Chalybeate Spring in the Isle of Wight, 4to. (pp. 36), 

 sewn, with author'' s inscr., 3s 1811 



11395 MARCET (Fran9ois) Remarques sur un Memoire de M. Charles Martins relatif k 

 I'ACCROISSEMENT NOCTURNE de la TEMPERATURE avec la Hauteur dans les Couches Inf^rieures 

 de 1' Atmosphere, avec Note sur les Ettets du Rayonnement Nocturne au-dessus des Grandes 

 Surfaces d'Eau, 8vo. (pp. 21), sewn, with inscr. to Sir E. Frankland, F.E.S., 2s 6d 1861 



11396 [MARCET (Jane)] Conversations on Chemistry; in which the Elements of that Science 

 are familiarly explained and illustrated by Experiments; 4th Edition, considerably enlarged, ivith 

 14 plates, 2 vols, fcap, 8vo. contemporary hf. morocco gilt, lOs 6d 1813 



11397 Sixteenth Edition, revised and corrected, with 18 plates, 2 vols. fcap. 8vo. cl., 5s 1853 



This work will always retain a peculiar interest for having initiated Faraday, when a bookseller's errand-boy, into 

 chemical knowledge. He acknowledged this fact in 1858 in an interesting letter to M. de la Rive (c/. Dr. Bence Joues^ 

 Life and Letters of Faraday). 



11398 Conversations on Natural Philosophy ; in which the Elements of that Science are 



familiarly explained, and adapted to the Comprehension of Young Pupils, 13tli Edition, with 24 

 plates, thick post 8vo. cl., 3s 1858 



11399 MARCET (William, m.d., f.r.s.) Chemical Inquiry into the Phenomema of Human 

 Respiration, with 2 plates, roy. 4to. (pp. 31), sewn, witn inscr. to Edward Whymper, 2s %d 1890 



11400 On the Composition of Food, and how it is Adulterated, with practical Directions 



for its Analysis, ivith numerous woodcuts, andjolding table, 8vo. cl., 3s Qd 1856 



11401 Contribution to the History of the Respiration of Man, with Supplementary 



Considerations of the Methods of Inquiry and Analytical Results; with numtrous plates, charts, 

 and diagrams^ impl. 8vo. cl., with auto, and MS. notes by Edward Whymper, 5s (p. 12s Hd) 1897 



