7S8 HENRY SOTHERAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 



15625 BAUSCHINGER (Julius ; Univ. Strasbourg) Die Bahnbestimmung der Himmelskorper ; 

 with 84 diagrams, 4to. original hf. calf {slightly rubbed), £1. 2s Qd (p. M. 37) Leipzig, 1906 



15626 Tafeln zur theoretischen AstroNOMIE ; with 2 plates, 4to. c/., ivith author's inscr. to 



Dr. Downing, F.R.S., 7s (p. M. 12) ibidem, 1901 



15627 BTTRNHAM (Sherburne Wesley; f.r.a.s., Yerkes Observatory) General Catalogue of 

 Double Stars, within 121'^ of the North Pole, with Notes to the Catalogue, diagrams, 2 vols. roy. 

 4to. (pp. 1086), cl., £2. 2s (p. $28) Carnegie Inst., Washington, 1906 



The only catalogue published of all known double stars visible in the Northern Hemisphere, including 1,274 new ones 

 discovered by the author himself. 



15628 CAUS (Salomon de, Ingenieur du Prince de Galles) La Perspective, avec la Raison des 

 Ombres et Miroirs ; with finely engraved frontispiece ( ? by J. T. DE Bry), and 63 large engravings, 

 folio, sewn (rare), £2. 5* Londres, Jan Norton, 1812 



' Livre tres-rare. '—iiofirr. Gen. The author was mathematical tutor to Henry Prince of Wales, and drawing-master to 

 the Princess Elizabeth. His best-known work is ' Les Raisons des Forces Mouvantes ' (y. No. 730 ante), through which the 

 invention of the steam-engine has been claimed for him. 



15629 CESI [6 OESIO ; Latine C-ffiSIUS] (Bernardo, s J.) Mineralogia, sive Naturalis Philo- 

 sophise Thesauri, in quibus Metallicse Concretionis Medicamentorumque Fossilium Miracula, 

 Terrarum Pretium, Culorum et Pigmentorum Apparatus, Concretorum Succorum Virtus, Lapidum 

 atque Gemmarum Dignitas continentur, thick folio, old vellum, or, parchment (rare), £2. 2s 



Lugduni, J. et P. Prost, 1636 

 Containing also much of chemical interest. Pp. 1-137 treat of Mineralogy proper, pp. 187-283 of Colours and Pigments 

 and pp. 541-OOS of Gems. The work is not noticed by Brunet and is rare. 



15630 CROLL (Oswald) : Bazilica Chymica, et Praxis Chymiatric^, or Royal and Practical 

 Chymistry, in Three Treatises, wherein all those excellent Medicines and Chymical Preparations 

 are fully discovered, from whence all our modern Chymists have drawn their choicest Remedies, 

 being a Translation of Oswald Crollius his Royal Chymistry, augmented and inlarged by John 

 Hartman. To which is added his Treatise of Signatures of Internal Things, or a true and 

 lively Anatomy of the greater and lesser World, as also the Practice of Chymistry of John 

 Hartman, m.d., augmented and inlarged by his Son : all faithfully Englished by a Lover of 

 Chymistry, with woodcuts, folio, large and fine copy in old calf {back slightly damaged); rare, 

 £1. lOs J. Starkey and T. Passinger, 1670-69-70 



' Having a good knowledge of chemistry, Croll brought into use many of the medicaments of Paiacelsus, together with 

 other new preparations ; among the latter, he was the first to recommend the use of sulphate of potash (K.> SO4) and of 

 volatile salt of amber (succinic acid).'— Pro/. E. v. Meyer. 



' He knew chloride of silver well, and first gave it the name of luna cornea, or horn silver ; fulminating gold was known 

 to him, and called by him aurum volatile.' — Dr. Thotnas Thomson. 



15631 EIFFEL (Alexandre Gustave ; builder of the Tower) Nouvelles Recherches sur la 

 Resistance de I'Air et I'Aviation faites au Laboratoire d'Auteuil ; with frontispiece of the 

 author's Aerodynamic Laboratory, and 267 illustrations, a,nd Atlas, containing 61 pp. of numerical 

 tables and 39 plates, 2 vols. roy. 4to. cl., loith author's inscr., £1. IO5 (p. F. 50 nett) 1914 



Containing in an extended form the author's important researches first published in his La Resistance de I'Air et I'Avia- 

 tion, which ' enseignes dans un grand nombre de cours sont a peu pres devenus classiques.' 



Laughed at for many years as an engineering tour de force, the Eiff'el Tower gained a double justification, first by its 

 great use in wireless telegraphy, and then as a conning tower against the air murder brigade of William the Poisoner. 



15632 MOISSAN (Henri, de rinstitut), et autres : Traite de Chimie Minerale ; with numerous 

 woodcuts, 5 thick vols. roy. 8vo. hf. olive Levant morocco gilt, uncut, t. e. g. (fine copy), £4. 10* 

 (p. F. 150 nett sewn) 1904-6 



The most authoritative French work on the chemistry of metalloids and metals. The author's collaborators were 

 MM. Aloy, Andre, Brochet, Charpy, A. Colson, H. Gautier, Le Chatelier, Lemoine, Mas.^ol, Metzner, Sabatier, Verneuil, 

 Vigouroux, Vogt, and other eminent chemists. 



THE NEW EDITION JUST PUBLISHED AT £1. 10* NETT : 



15633 MORGAN (Augustus de ; f.r.a.s.. Prof. Mathematics, Univ. Coll., London) A Budget of 

 Paradoxes, revised and edited with full Bibliographical Notes and Index by David Eugene 

 Smith, Teachers' College, Columbia University, 2 vols. 8vo. (pp. 1000), cl. Chicago, 1915 



One of the most interesting and witty books ever written, and invaluable for its history and bibliography of some 

 scientific fallacies, e.g. ' circle-squaring '. It contains besides a large number of anecdotes, etc. on mathematical and 

 scientific subjects. ' He had a love of puns, and all ingenious puzzles and paradoxes, which makes his ' Budget of 

 Paradoxes' as amusing as it is learned.' — Sir Leslie Stephen. 



• It is by far the most individual book of the age— individual, not merely in its own singularity as a book, but as 

 presenting with a marked degree of clearness and exactness the personality of one who was never quite a man among 

 other men. ... To sum up, this is a book that should be read by those who care about circle squarers and all manner of 

 jokes, mathematical and other ; by those who care to make the acqtiaintance of Augustus de Morgan, which it is 

 well worth while to do ; but above all by those who care to be led into right thinking and warned from wrong.' — Prof. 

 W. K. Clifford. 



The work is now rendered additionally valuable by the bibliographical notes and index by Prof. D. E. Smith. The 

 original edition has been out of print for many years, and is very scarce. 



15634 [NUIJEZ, Latine'] NONIUS (Pedro) Opera : Probleraata, Regulte et Instrumenta Artis 

 Navigandi, quibus varia Rerum Astronomicarum <^aiv6^iva circa Ccelestium Corporum Motus 

 explorare possumus : Annotationes in Aristotelis Problema Mechanicum de Motu Navigii, in 

 Georgii Purbachii Planetarum Theoricas Annotationes ; de Erratis Orontii Finoei [sic] ; de 

 Crepusculis Lib. I, cum Libello Allacen de Causis Crepusculorum ; with printer's device on the 

 title and last leaf, and very numerous diagrams, folio, mottled ca/[/ (fine copy) ; very rare, £5. 5^ 



Basileae, Seb. Henricpetri, 1592 

 ' Quoique le geomfetre et astronome portugais Nonius n'ait pas ecrit de traite de gnoraonique, il raerite ici une place 



distinguee, par la remarque et I'explication d'un phenomene gnomonique fort singulier [the loxodromic curve] : e'est celui 



de la retrogradation de I'ombre sur un cadran sous certaines latitudes.' — Montticla. 



The work also contains au exposure of the errors in Finteus's dialling, etc. The author is best known as the inventor 



of the Nonius. 



