442 HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 43, PICCADILLY, W. 



8715 GROSS (Georg) Die mechanische Warmetheorie (Thermodynamik), unter besonderer 

 Berilcksichtigung der Molekulartheorie, I. Band ; with 47 woodcuts, 8vo. sewn, 5s (p. M. 8) 



Jena [1898] 



Intended as a preparatory work to those of Clausius and Zeuner. The 2nd volume has never been published. 



8716 GROSSMANN (J.) Fuhrer in der geometrischen Analyse der Krystallographie ; with 

 plate and 29 woodcuts, 8vo. sewn, 2s Leipzig, 1857 



8717 GROSSMANN (Jacob, f.i.c.) Ammonia and its Compounds, with woodcuts, cr. 8vo. cL, 

 25 1906 



8718 GROTH (Lorentz Albert) The Potash Salts: their Production and Application to 

 Agriculture, Industry, and Horticulture, with numerous illustrations, 8vo. sewn, 3s 1902 



8719 GROTH (Paul H. Ritter v. ; Univ. Munich) Physikalische Krystallographie, und 

 Einleitung in die krystallographische Kenntniss der wichtigeren Substanzen ; with 3 folding 

 plates (I coloured), and 557 woodcuts, 8vo. hf. calf neat, 5s (p. M. 16 unbound) Leipzig, 1876 



First edition of this classic work. 



8720 GROTHE (Hermann) Die Entwickelung des Masciiinenwesens und die grossen 

 Ingenieure, 12mo. (pp. 40), sewn, Is 6d Berlin, 1867 



8721 GROVE (Sir William Robert, Justice of the Queen's Bench Division; f.r.s.) On the Corre- 

 lation of Physical Forces : Lectures in the London Institution, 1843, first edition, 8vo. 

 (pp. 56), sewn {very scarce), 10^ 6c? 1846 



8722 Fifth Edition, with Discourse on Continuity, 8vo. (pp. 330), cL, 4s 1867 



8723 Sixth [last] Edition, with other Contributions to Science, woodcuts, thick 8vo. cL, 



uncut (o. p.), Ss 6d (p. 15s) 1874 



This edition includes the Batierian Lecture, lSo2, ' On the Electro-Chemical Polarity of Gases ', ' On the Stride seen in 



the Electrical Discharge in Vacuo ', the papers containing his invention of a zinc and platinum galvanic cell, named after 



him, and of ' gas voltaic battery ', as well as numerous other papers contributed to the ' Philosophical Transactions ', etc. 



8724 GRUBB (Sir Howard, t.c.d., f.r.s.), Description of the Great 27-Inch Refracting 

 Telescope and Revolving Dome, for the Imperial and Royal Observatory of Vienna, designed 

 and constructed by, with 3 plates (2 folding), and 31 woodcuts, folio, sewn, 4s 1881 



8725 GRUNERT (Johann August, Univ. Greifswald) Optische Untersuchungen ; with 3 plates, 

 3 vols. 8vo. in 1, hf. calf gilt {scarce), \Qs Qd Leipzig, 1846-51 



Ixha.lt : I. AUgemeine Theorie der Fernrohre und Mikroskope : II. Theorie der achromatischen Objective flir 

 Fernrohre : III. Theorie der zweifachen achromatischen Oculare. 



8726 GRYNAEUS [Germanice GRYNER, junior] (Simon) : De Cometis Dissertationes 

 Novae Clariss. Virorum Thom. Erasti, Andr. Dudithii, Marc. Squarcialupi, Symon. 

 Grynaei ; with vignette on title, and 4 large woodcuts, sm. 4to. old limp vellum {names torn o/ 

 title, otherwise a fine copy) ; RARE, £1. 5* [Basilece^, 1580 



The work by Grynaeus is entitled : ' Commentarii Duo, de Ignitis Meteoris unus : alter de Cometarum Causis atque 

 .Significationibus ; accessit ejusdem Observatio Cometae, qui anno superiore 77, et ab initio 7S fulsit, et Disputatio de 

 Inusitata Magnitudine et Figura Veneris conspecta in fine anni 1578, et ad initium 1579.' There are also two treatises by 

 Thomas Erast : ' De Cometarum Significationibus Judicium ', and ' De Cometarum Ortu, Natura et Causis Tractatus ', 

 and one ' De Cometa in Universum, atque de illo qui anno 1577, visus est, opinio Marcelli Squarcialupi Plum- 

 binensis.' 



8727 IiDEM Tractatus, necnon, Historia Admiranda de Prodigiosa Apolloniae 



SCHREIERAE, Virginis in Agro Bernensi, Inedi\ ; a Paullo Lentulo, m.d., complurium etiam 

 aliorum, de eiusmodi Prodigiosis Inediis jN^rrationes, with front, of the fasting girl {mounted), 

 2 vols. sm. 4to. in 1, old hf. calf, £2. 2* ib., l5S0—Bernae Helv., 1604 



This rare and curious work, probably the first on fasting as an ' art ', is dedicated to James I. 



8728 GTJADAGNI (Garolo Alfonso, Univ. Pisa) Specimen Experimentorum Naturalium ; 

 with ^folding copperplates, sm. 4to. contemporary boards, uncut, i5s Pisis, 1764 



Very rare, and unknown to Riccardi and Poggendorff, nor noticed by Bruiiet, Graesse, and other bibliographers. The 

 work contains a large number of experiments on electricity and magnetism. 



8729 GTJARESCHI (Icilio, Univ. Turin) ElNFiJHRUNG in das Studium der Alkaloide, niit 

 besonderer Beriicksichtigung der vegetabilischen Alkaloide und der Ptomaine, in deutscher 

 Bearbeitung herausg. von Hermann Kunz-Krause, impl. 8vo. hf. German morocco gilt, £1. 1* 

 (p. M. 3S) Berlin, 1896 



8730 GTJERICKE (Otto v. ; Burgermeister of Magdeburg) Experimenta Nova (ut vocantur) 

 Magdeburgica de Vacuo Spatio, primiim h, Gaspare Schotto, s.j. : nunc verb ab ipso 

 Auctore perfectiiis edita, variisque aliis Experimentis aucta ; accesserunt de Aeris Pondere 

 circa Terram, de Virtutibus Mundanis, et Systemate Mundi Planetario, sicut de Stellis 

 Fixis, ac Spatio illo immenso, quod tkm intra qukm extra eas funditur ; with finely engraved title^ 

 and 20 other Jine engravings on copper, folio, contemporary vellum {fine copy) ; RARE, £2. 8* 



Amstelodami, 1672 

 This celebrated work contains an account of the author's discoveries, viz. the air-pump, the Magdeburg Hemispheres, 



and the manometer, his electrical machine (the first one invented) consisting of a ball of sulphur, and his experiments on 



the nature and effects of air, as well as his astronomical treatises. 



The plates include the fine folding one showing the author's experiments with his hemispheres in 1654 at Ratisbon 



before the Diet and the Emperor Ferdinand III. 



8731 GUEST (James J.) On the Strength of Ductile Materials under Combined Stress, with 

 diagrams, 8vo. (pp. 64), sewn, 2s 1900 



8732 GUILIELMUS (S., Abbas Hirsaugiensis) : Philosophicarum et Astronomicarum Institu- 

 TIONUM Libri III : Opus vetus at nunc primum evulgatum et Typis commissum, sm. 4to. hf. roan 

 {title slightly soiled, but a sound copy) ; RARE, £1. 1* Basilece, Henr. Petrus, 1531 



St. William of Hirschau was not only one of the greatest mathematicians of the Eleventh Century, but a great monastic 

 reformer, who introduced the Cluniac rule into Germany, with the result that his strictness filled his House with monks, 

 many of whom shared his learning. He was also a great student of Plainsong. 



' Pour son 6poque Guillaume possedait les connaissances les plus etendues ; verse dans toutes les sciences du 

 3«adr'iriviw»n, il etait le plus renomme pour la finesse des ses raisonnements philosophiques. '—^iogrr. Gen. 



