HENRY SOTHEKAN & CO., 140, STRAND, W.C, and 43, PICCADILLY, W. 409 



8021 [FONTENELLE (Bernard le Bovier de ; f.r.s.)] F.l^ments de la G6ometrie de I'Infini ; 

 with plate, 4to. old calf gilt, newly rehacked {fine copy), %s 6d Imprimerie Eoyale, 1727 



8022 Another Copy, hf. calf, with bookplate of Edward I2th Duke of Norfolk, 7s Qd 



8023 A Week's Conversation on tlie Plurality of Worlds ; 6th Edition, translated by 



Mrs. Aphra Behn, John Glanvil, John Hughes, and William Gardner; with Joseph 

 Addison's Defence of the Newtonian Philosophy, with 2 cojjperplates, 12rao. contemporary 

 calf (Joints cracked), Is Qd 17^ 



Aphra Behn on the plurality of worlds ! 



8024 FONVIELLE (Wilfrid de) Eclairs etToNNERRE; 2« Edition, augment^e ; with 2^^ plates, 

 and 15 other woodcuts, cr. 8vo. seivn (o. p.), 2s 1869 



8025 Thunder and Lightning ; translated and edited by T. L. Phipson, f.c.s., with 24 



plates, and 15 other woodcuts, cr. 8vo. cl. gilt (o.p.), 3s 1868 



8026 Histoire de la Navigation A^rienne ; vnth 99 illustrations, roy. 8vo. cl., g. e., 3* M 1910 



8027 Adventures in the Air, being Memorable Experiences of Great Aeronauts, translated and 



edited by John Scott Keltie, with 3o plates and woodcuts, post 8vo. cl. {o. p.). Is 6rf 1877 



802S FORBES (John, d.d.) The Theory of the Differential and Integral Calculus, derived 

 synthetically from an Original Principle, tvith diagrams, 8vo. cl. {scarce), 6* Glasgow, 1837 



Attempting to establish the calculus on purely geometrical principles. 



8029 FOBDYCE (George, m.d., fr.s., St. Thomas's Hospital) ACCOUNT of a New Pendulum, 

 (Bakerian Lecture), with 4 copperplates, 4to. (pp. 19), sewn, 3s 1793 



80.30 On the Cause of the Additional Weight which Metals acquire by being calcined, 



unth folding copperplate by Basire, 4to. (pp. 9), sewn^ As 1792 



' ImiK)rtant as confirming by an indirect method the views of Priestley and Lavoisier in opposition to the doctrine of 

 Phlogiston.'— D. N. B. Dr. Fordyce was an able chemist and mineralogist, and lectured all the week all the year round 

 on chemistry and materia inedica for over thirty years. 



8031 FOREST DUCHESNE (Nicolaa ; s. J.) La Fleur des Pratiques du CoMPAs de Proportion, 

 oil sont facilitees toutes les plus belles Demonstrations des Mathematiques, reveue eb 

 augment^e par I'Auteur ; witn folding plate of the Compass, numerous engravings on copper^ 

 diagrams, and folding table, 12mo. hf. polished green morocco neat {title and plate slightly mended, 

 and lower part water-stained, otherwise a fine copy) ; rare, £1. \s H. Guenon, 1639 



This seems to be the first French work on the compass of proportion, invented by Galileo some 30 years before, and 



contains a number of new applications. 



80.32 FORESTANI (Lorenzo, da Pescia, de' Minori Conventuali di S. Francesco) Pratica 



d'ARiTHMETiCA e Geometria, di nuovo ristampata, e con somma Diligenza ricorretta ; with 



numerous woodcuts and diagrams, sra. 4to. boards, uncut (RARE), 17* 6d Siena, 1682 



' This work is so scarce that it has escaped Prof, de Morgan. It contains solutions of several indeterminate problems. 

 Amongst the authors quoted by Forestani we find Galigai, Calandri, Lazzisio, Pagani, etc.'— Libn Catalogue. 



' Opera interessantissima per la storia dell' aritmetica, anipiamente sviluppata ed applicata anche alia mercatanzia ; e 

 per quella della geometria i)ratica, trovandovisi la descrizione e I'uso degli strumenti allora conosciuti, fra i quale sono 

 notevoli quelli che ora direbber.si di celerimensura.' — Ricatrdi. 



8033 FORFAIT (Pierre Alexandre Laurent) Solutio Problematis a Regia Scientiarum et 

 Literarum Academia Mantuana propositi, 1776: eum Moduni determinare, quo, minimo 

 labore, et minima impensa, navigabiles Alvei expediantur ex arenfi, et acervis, qui horum fundum 

 altius evehunt ; unth Q folding copperplates, 4to, sewn. Is Qd Mantuce, Ylll 



This work obtained the prize of the Academy of Mantua as the best on the upkeep of navigable canals. 



8034 Trait6 Elementaire de la Mature des Vaisseaux ; with 2A folding plates containing 



\90 figures, 4to. old calf gilt, 15« ' 1788 



8035 Another Copy, with the Royal Arms on title defaced, contemporary calf gilt, IQs Qd 



' Tout ce qui conceme les bois, les m&ts, les voilures, les vergues et les autres parties du vaisseau y est d6crit avec uno 

 precision reraarquable'.— JSto^r. Gin. 



The author, who was sent to England in 1789 to study the progress of the British Navy, was president of the commis- 

 sion charged to prepare an armed descent on England in 1798. 



8036 FORNEY (Matthias N.), Leander GAREY, and Calvin A. SMITH; The Car-Builder's 

 Dictionary : an Illustrated Vocabulary of Terms which designate American Railroad Cars, 

 their Parts and Attachments : enlarged Edition, with the Leading Terms in English liailway 

 Carriage and Wagon Construction, oy A. M. Wellington, c.e., with front., and hundreds of 

 woodcuts, obi. 4to. cl., Qs New York, 1884 



8037 FORSTER (Martin Onslow, f.r.s.) Camphoroxime, diagrams, 2 parts 8vo. sewn, \s Qd 1897 



8038 Studies in the Camphane Series, Parts II— V, VII— X, and XII, 9 parts 8vo. sewn^ 



3* 1901-3 



8039 FORSTER (Thomas Ig-natius Maria, m.d., f.r.a.s. ; /rtcnrf of Shelley and Sir William 

 Herschel) Researches about Atmospheric Ph.«;nomena ; 2nd Edition, enlarged, with Qfine tinted 

 plates by F. C. Lewis, illustrating various types of clouds, 8vo. boards {scarce), Is Qd 1815 



8040 Third [last] Edition, corrected and enlarged, with the Calendar of Nature, 8vo. calf 



gilt {nice copy), \2s Qd 1823 



Still valuable as an elaboration of Howard's nomenclature of clouds (v. No. 2012, ante). 



8041 FORSYTH (Andrew Russell, f.r.s.) Invariants, Co variants, and Quotient-Derivatives 

 associated with Linear Differential Equations, roy. 4to. (pp. 113), sewn, with inscr. to Prof. 

 Lloyd Tanner, F.B.S., Ss Qd 1888 



8042 The Differential Invariants of Space, roy. 4to. (pp. 57), sewn, 2s Qd 1903 



8043 FOTHERINGHAME (Thomas, master, r.n.) Directions for Ascertaining and Counter- 

 acting the Effects of Local Attraction on the Mariner's Compass, by explaining the neces- 

 sary Methods of Guarding against its Power, with Cases shewing the Necessity of attending to it, 

 and a few Practical Hints on the Variation of the Compass, and the Utility of the Lead and 

 Charts, 4to. d.,7sQd 1837 



