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



9947 JUAN [y SANTACILIA] (Don Jorge; f.r.s.) Examen Maritimo Theorico Practico,. 

 6 Tratado (le Mechanica aplicado a la Construccion, Conocimiento y Manejo de los- 

 Navios y demas Embarcaciones, primera edicioa ; ivith 14 folding plates, 2 Vols. sm. 4to. old 

 vellum (rare), £1. 55 Madrid, 1771 



'Ouvrage estime '—Brunei. ' En 1753 le commandement des gardes marines et rinspection generale des chantiers de 

 oonstruction furent confies a don [Jorge] Juan. ... La marine espagnole etait tombee au dernier lang ; elle fut I'objetde 

 tons ses soins ; il s'appliqua a la relever : tous les batiments qu'il tit lancer etaient remarquables par leur solidite et leur 

 yitesse.'—Biogr. Gen. 



9948 Examen Maritime, theorique et pratique, ou Traite de Mechanique, applique k 



la Construction et a la Manceuvre des Vaisseaux et autres Batiments, traduit, avec des 

 Additions, par P. Leveque ; with Infolding copperplates, 2 vols. 4:to. sound copy in contemporarii 

 tree-calf gilt (rare), £1. 15^ Nantes, 1783- 



* L'ouvrage le mi;illeur, le plus savaut et le plus complet qu'il y ait sur la construction et la manoeuvre. ... II y a pea 

 d'ouvrages aussi importans pour la marine.'— loZoiitJe. 



9949 , et Antonio de XJLLOA, f.r.s. : Voyage Historique de I'Amerique Meridionale, 



qui contient uue Histoire des Yncas du Perou, et les Observations Astronomiques et 

 Physiques faites pour determiner la Figure, et la Grandeur de la Terre ; with 2 fronts, and 

 45 copperplates hy Folkema, etc. {mostly folding), 2 vols. 4to. old calf gilt {joints cracked), with 

 bookplate of Henry B. H. Beaufoy, F.R.S. (rare), £1. lO* Amsterdam, 1752 



An indispensable supplement to the works of La Condamine {v. Nos. 2349-50, ante) and Bouguer (No. 6368, o.nte) in 

 whose expedition the authors took part. 



'Ce fut a don Jorge Juan que Ton dut de pouvoir calculer la hauteur des montagnes au moyen du barometre.' 

 — Biogr. Gen. 



9950 JUiDD (John Wesley, f.r.s.) Volcanoes : what they are, and what they teach, with II plates, 

 and 85 woodcuts, or. 8vo. cl., 2s (p. 5s) 1881, or '8 



9951 JUGEL (Johann Gottfried ; rosicrwaan) FreyentdeckteExPERlMENTAL-CHYMiE, oder Versuch 

 den Grund natiirlicher Geheimnisse durch die Anatomic und Zerlegungskunst, in dem astra- 

 lischen, animalischen, vegetabilischen und mineralischen Keiche, durch systematische Grundsiitze, 

 Lehrsiitze, Beweise, Gegensatze, Gegenbeweise, Anmerkungen, Versuche, Erfahrungen, und 

 darauf folgende Schliisse, nebst dem deutlichea Naturbegriife de metallischen Generation 

 durch eine lange Untersuchung vorzustellen ; with front, with portrait, Svo. old hf calf (rare), 

 with numerous contemporary MS. notes, I2s 6d LeifZ g, 1766 



' In diesem Buche versichert Ju'gel u. A. den Stein der Weisen selbst in Handen gehabt zu haben, wie auch dass er 

 einmal von dem Silber ausgehend zu der Darstellung eines weissen Glases gelangt sei, welches von 100 Theilen Silber 

 einen Theil in Gold verwandelt habe.'— i/. Kopp, who gives a long account of the author and his works in Die 

 Alchemie, II., pp. 253-7. 



9952 JUKES (Joseph Beete, f.r.s.) Letters and Extracts from Addresses and Occasional 

 Writings, edited, with Memorial Notes, by his Sister [C. A. Browne], with steel portrait, thick 

 large post 8vo. cl. {o. p.), 5s (p. 12*) 1871 



9953 The School Manual of Geology, 5th [last] Edition, by A. J. Jukes-Browne, f.g.s., 



with numerous woodcuts and diagrams, fcap. 8vo. cl., 2s (p. 4* 6d) 1890 



9954 The Student's Manual of Geology, 3rd [last] Edition, re-cast and in great part 



re-written, edited by Sir Archibald Geikie, p.r.s., with front, and 213 woodcuts, thick large 

 post Svo. cl. {o. p.), Qs (p. 125 6c?) Edin., 1872 



9955 JUKES-BROWNE (Alfred John, f.r.s. ; Geological Survey) The Student's Handbook of 

 Historical Geology, with front, and 131 woodcuts, cr. 8vo. cl. (o. p.), 'Ss (p. 6s) 1886 



9956 The Student's Handbook of Physical Geology, 2nd [last] Edition, revised, with 



2 plates, and 214 woodcuts, thick cr. 8vo. cl. {o. p.), As 6d (p. 7s 6d) J 892 



9957 The Student s Handbook of Stratigraphical Geology, 2nd Edition [greatly 



enlarged and partly rewritten], with 210 diagrams, figures of fossils, and m^ips, large cr. 8vo. cl., 

 8s Qd {p. I2s nett) J 912 



9958 JULIUS (Frederik Hendrik) Berekening van de Loopbaan der Komeet 1863 VI.; vith 

 folding chart. 8vo. (pp. 37). sewn, with inscr. to J. R. Hind, F.R.S., 2s Utrecht, 1867 



9959 JULIUS (V. A.) Beschouwingen over de GroNDSLAGEN der Natuurkunde, roy. Svo. sewn, 

 2s Breda, 1880 



9960 JULIUS (Willem Hendrik, Utrecht) Anomalous Refraction Phenomena investigated with 

 the Spectroheliograph, plate, roy. Svo. (pp. 11), sewn, \s %d {Chicago, 1903] 



The author introduced the principle of anomalous disper.sion into astrophysics. 



9961 JUNKER (F.) Die symmetrischen Functionen und die Relationen zvvischen den 

 Elementarfunctionen derselben, roy. Svo. (pp. 84), sewn, 2s [Leipzig, 189t] 



9962 JURIKT (James, m.d., f.r.s.) Disse'rtationesPhysico- Mathematics, partim antea editt© 

 in Actis Philosophicis Londinensibus, jam aiictiores et emendatiores, partim nunc primum 

 irapressfe; with 3 copperplates, Svo. old vellum, uncut {rare), 12s Qd Londini, 1732 



Tlie above copy belonged to Richard Watson, f.r.s. (1737-1816), the absentee Bp. of Llandaff, and sometime Professor of 

 Chemistry at Cambridge, and contains copious MS. notes by him, as well as his Calgarth Park booklabel. 



It contains the account of the author's experiments on the ascent and suspension of water in capillary tubes, his papers 

 on the motion of running water (criticised by P. A. Michelotti), on the measure of the force of bodies in motion, and his 

 experiments on the specific gravity of human blood and on the power of the heart, ' both good attempts to convert 

 physiology into an exact science ' (D. N. B). 



9963 [ ] Geometry no Friend to Infidelity : or a Defence of Sir Isaac Newton and the 



British Mathematicians, in a Letter to the Author of the Analyst, wherein is examined how 

 far the Conduct of such Divines as intermix tlie Interest of Religion with their private Disputes 

 and Passions, and allow neither Learning nor Reason to those they differ from, is of Honour or 

 Service to Christianity, etc. etc., by Philalethes Cantabrigiensis, Svo. sewn, 6s 1734 



A reply to Bp. Berkeley's Analyst (v. Nos. 6141-5 ante), but ' which failed to remove all the objections' {Prof. Cajori). 

 The true interpretation of ' infinitesimals ' was given more than 100 years later by Weierstrass. 

 Prof. M. Cantor mistakenly attributes the authorship to Conyers Middleton and Robert Smith. 



