432 HENRY SOTHERAN & CO., 140, STRAND, w.c., AND 43, PICCADILLY, w. 



8489 GLEICHEN (Alexander) LEHRBUCH der GEOMETRISCHEN OPTIK ; with 251 diagrams, 8vo. 

 cl., 13s Qd (p. M. 20) Leipzig, 1902 



8490 GOAD (John; pr., Headmaster of Merchant Taylors' School) ASTRO-METEOROLOGICA, or 

 APHORISMS and DISCOURSES of the BODIES CELESTIAL, their NATURES and INFLUENCES, dis- 

 covered from the Variety of the Alterations of the Air, Temperate, or Intemperate, as to Heat or 

 Cold, Frost, Snow, Hail, Fog, Rain, Wind, Storm, Lightnings, Thunder, Blasting, Hurricane, 

 Tuffon, Whirlwind, etc. etc., collected from the Observation at leisure Times, of above Thirty 

 years, folio, contemporary calf (very sound copy) ; RARE, 1. 15s J. Rawlins, 1686 



' By far the largest and most important work devoted to astrological meteorology.' G. J. Symons, F.R.S. 



8491 GODFRAY (Hugh) ELEMENTARY TREATISE on the LUNAR THEORY, with brief Sketch of 

 the History of the Problem to Newton, folding plate, 8vo. cl., 2s Cambridge, 1853 



8492 SECOND EDITION, revised, with diagrams, post 8vo. cl., 2s Qd ibidem, 1859 



8493 THIRD EDITION, revised, with diagrams, post 8vo. cl., with auto, of Prof. H. W. Lloyd 



Tanner, F.R. S. , 3s 187 1 



8494 TREATISE on ASTRONOMY, LAST EDITION, with plate and numerous diagrams, 8vo. cl., 



Is (p. 12* Qd) 1886, or '94 



8495 GODFREY (Ambrose, Chymist, F.R.S.) ACCOUNT of the NEW METHOD of EXTINGUISHING 

 FIRES by EXPLOSION and SUFFOCATION ; wherein a Description is given of the several Machines 

 and their Uses, with Directions for their proper Application, with short NARRATIVE of MR. 

 POVEY'S BEHAVIOUR in relation to this useful Invention, by which it will appear, that the said 

 Mr. Povey's pretended Watch Engine is at best a precarious, and often dangerous Remedy, 

 imperfectly Stolen from Ambrose Godfrey's Method, published with a Design to rob the 

 right Owner of the just Reward by imposing upon the Publick in suppressing an Invention of real 

 and universal Benefit, and substituting an imperfect and dangerous one in its room, with vignette 

 on copper, sm. 8vo. hf. bound (very rare), 1. Is Printed in the Year 1724 



'Godfrey's method was tried in a house, erected for the purpose by the Society of Arts, in Marylebone Fields, 19 May 

 1761, when it seems to have proved entirely successful'. D. N. B. 



The author was for many years assistant to the Hon. Robert Boyle, F.R.S., to whom he refers in the introduction to the 

 above work. The latter was reprinted, but without the interesting Narrative, in 1743. 



8496 GODFREY (Charles; Headmaster Roy. Naval Coll., Osborne) On the APPLICATION of 

 FOURIER'S DOUBLE INTEGRALS to OPTICAL PROBLEMS, with 2 diagrams, roy. 4to. sewn, Is Qd 1900 



8497 GOERENS (P., Aix-la-Chapelle) INTRODUCTION a la METALLOGRAPHIE MICROSCOPIQUE, 

 traduite par A. CORVISY, revue et augmentee par F. ROBIN ; with 34 plates and 157 other illus- 

 trations, roy. 8vo. sewn, 6s (p. F. 10 nett) 1911 



8498 GOETHE (Johann Wolfgang v.) THEORY of COLOURS, translated, with Notes, by SIR 

 CHARLES LOCK EASTLAKE, R.A., F.R.S., with 4 coloured plates, 8vo. cl., uncut (cover damaged) ; 

 SCARCE, 15* 1840 



A violent and quite futile attack on Newton's theory of colours by the poet-philosopher, but which is still suggestive 

 to artists, though it has long lost its place as a contribution to optics. 



' It must be admitted that the statements contain more useful principles in all that relates to harmony of colour than 

 any that have been derived from the established doctrine.' Preface. 



8499 : SECHSZEHNTAFELNZlirFARBENLEHRE, und SlEBENUNDZWANZIG TAFELN ZU BEITRAGE 



zur OPTIK, nebst Erklarung ; 43 plates (mostly coloured), 4to. sewn, 5s Stuttgart, 1842 



8500 (EuvRES SCIENTIFIQUES, aualysees et appreciees par ERNEST FAIVRE ; with 4 plates, 



8vo. hf. calf (joints rubbed), 4s 1862 



8501 GOLDMANN (Charles Sydney, F.R.G.S.), and Joseph KITCHIN : SOUTH AFRICAN MINES : 

 their Position, Results, and Developments, with Account of Diamond, Land, Finance, and kindred 

 Concerns, with over 100 plates (many folding and coloured), 3 vols. 4to. cl., 17s Qd (p. 3. 3s) 1895-6 



8502 GOMPEBTZ (Benjamin, F.R.S.) On the ABERRATION of LIGHT, with plate, 4to. (pp. 16), 

 sewn, 3s 1824 



8503 On the NATURE of the FUNCTION expressive of the LAW of HUMAN MORTALITY ; and on 



a NEW MODE of DETERMINING the VALUE of LIFE CONTINGENCIES, 4to. (pp. 75), sewn, with 

 author's inscr. (scarce), 6s 1825 



' Had his principle been propounded in the days of Newton, vitality would have been made a thing of, like attraction. 

 Prof, de Morgan. 



8504 The THEORY of ASTRONOMICAL INSTRUMENTS, PARTS I and II, with SUPPLEMENT, with 



folding plate, 4to. (pp. 31), sewn, 4s Qd 1824 



8505 GOODEN (James, s.j., e Collegio Anglorum Leodii) TRIGONOMETRIA PLANA et SPH^RICA, 

 cum selectis ex Geometria et Astronomia PROBLEMATIS ; accedunt SINUUM CANONES, et ex 

 Euclide Propositiones magis necessarise ; with numerous diagrams, 12mo. sewn, uncut, with auto, 

 of General Robert Melville, F.R.S. [1723-1809], 6* Leodii, 1704 



8506 GOODMAN (John) On a NEW and PRACTICAL VOLTAIC BATTERY of the HIGHEST POWERS, in 

 which Potassium forms the Positive Element, 8vo. (pp. 13), sewn, Is Qd Manchester, 1847 



8507 RESEARCHES into the IDENTITY of the EXISTENCIES or FORCES ; Light, Heat, Electricity, 



and Magnetism, 8vo. (pp. 23), sewn, Is Qd ib., 1847 



8508 GOODBICKE (John, F.R.S.) OBSERVATIONS of a NEW VARIABLE STAR, 4to. (pp. 12), sewn, 4s 1785 



An account of the author's discovery of the variability of ^3 Lyrce. 



8509 GOODWIN (Henry Bedingfield) PLANE and SPHERICAL TRIGONOMETRY, with numerous 

 diagrams, 8vo. cl., 3s (p. 8s Qd) 



8510 FIFTH EDITION, with numerous diagrams, 8vo. hf. calf, 4s Qd (p. 8s Qd) 1896 



8511 SIXTH IMPRESSION, with diagrams, 8vo. cl., 5s " 1901 



8512 GOOS (Fritz, Hamburg) Der SPEKTROSKOPISCHE DOPPELSTERN CAPELLA : Inaugural - 

 Disseptation ; with photographic plate, and diagram, 4to. sewn, 4s Bonn, 1908 



