HENRY SOTHERAN & CO., UO, STRAND, W.C., A\d 37, PICCADILLY, W. 379 



7414 DUPIN (Charles Baron; ch I'lnstiiut) Application's <le (Ikomktrie et MKCHAXKiUE, a la 



Marine, aiix Ponls et Chauss^es, etc., pour faire Suite aux Developpenients tie Geoinetrie ; ivith 



n folding copperplates, 4to. old calf (Joints cracked), with author's INSCR. to Peter Barlow, F.K.S.^ 



as belovj, and the latter's hooklahel, %s 18*22 



' From the author to his friend Professor P. Barlow. Ch. Dupin.'— 7/iscr. on flyleaf. 



7415 Geometrie et Mecamque des Arts et Metiers et des Beaux-Arts"; ivith numerous 



folding j)lates, 3 vols. 8vo. hf. calf 5s Bruxelles, 1825-6 



7416 Rapport sur les Arts de la Marine et de la Guerre, fait k la Commission Fran^aise du 



Jury International de I'Exposition LTniverselle de Londres ; with 5 folding tables, Svo. hf morocco 

 [title stamped), 6* Qd Imprimerie Imperiale, 1855 



' From the Author to Lieut. G". Sir John Burgoyne. B. C. Dvpin.'—Iivicr. pusted on flylenf. 



7417 DURAN (Jean Alexandre, de Bordeaux) Revelation Scientifique : Dieu a J.-A. Duran ; 

 suivie d'un Catechisme Pliysi(iue, Metaphysique, Theologique, et Moral, roy. 8vo. (pp. 344), sewn 

 {scarce), Is (id Bordeaux, 1847 



An extraordinary production, apparently unknown to Prof, de Morgan, in which the author in the rule of prophet 

 ' reveals ' a novel Ixisis of ' universal science '. 



7418 DURAND-CLAYE (Charles Leon^ et Leopold MARX : Routes et Chemins Vicinaux : 

 Trace, Reilactiou des Projets, Construction, Entretien ; with numerous woodcuts and diagrams^ 

 roy. Svo. hf. morocco neat, 8* iSd (p. ¥. 25 nett sewn) 1885 



7419 DUREGE (Heinrich, Univ. Prague) Theorie der elliptischen Functionen ; 2. Auflage ; 

 with 32 diagrams: Elements der Theorie der Functionen, einer complexen verander- 

 liciien Grosse, mit besonderer Reriicksichtigung der Schiipfungen RiEMANN's, 2 umgearbeitete 

 Auflage ; with 62 diagrams— 2 vols. Svo. in 1, hf. calf with auto, and bookstamp of Prof. H. W. 

 LI. Tanner, F.R.S., 4* Leipzig, 1868-73 



7420 Dt)R.ER (Albrecht) Institutionum Geometricarum Libri IV, in quibus Lineas, Superficies, 

 et Solida Corpora ita tractavit, ut non Matheseos solum Studiosis, sed et Pictoribus, etc. sint 

 summe utiles et necessarii, versi in Linguam Latinam, et nunc iteratij editi; with numerous fine 

 woodcuts by Albert Durer, folio, old Italian vellum {some II. browned as usual, otherwise A fine 

 and tall copy) ; BARE, £2. 10* Arnhemife, 1605 



7421 Another Copy, old Dutch vellum {corners of some II. slightly stained, otherwise an 



unusually fine and tall copy), £2. 155 



•Albrecht Diirer ist iler Erste der die Naherunsskonstruktionen mit voUem Bewu.sstsein ausgefiihrt hat.*— Prrt/. Cantor. 



7422 DUSUZEAU (J.) Economie Nouvelle dans I'Elevage des Vers a Soie : Pratiques pe'rfec- 

 tionnc^'es pour obtenir les Cocons a bon Marche ; with 3 plates, roy. Svo. (np. 30), sewn, 2s Lyon, 1881 



7423 Rapport de la Commission des Soies sur ses Operations de I'Annee 1882, impl. Svo. 



sewn, 2s ib., 1883 



7424 DUTENS (Louis, f.r.s.. Rector of Elsdon, Northumberland) Origine des Dkcouvertes 

 ATTRiP.rEES aux Modernes ; oil Ton deinontre que nos plus celebres Philosophes ont puisd la 

 Pluj^art de leurs Connoissances dans les Ouvrages des,Anciens, et que plusieurs Veritas sur la 

 Religion ont (5te connues des Sages du Paganisme, 3^ Edition, consid6rablement augmentde, 4to. 

 old tree-calf gilt. Is Qd Londres, 1796 



7425 Des Pierres Precieuses et des Pierres Fines, avec les Moyens de les connoitre et de 



les evaluer ; with copperplate, post Svo. sewn, 4* ibidemj Yin 



7426 DYCK (Walther) Gruppentheoretische Studien ; with 3 plates, Svo. (pp. 44), sewn, 

 \s %d Leipzig, 1882 



7427 DYE (Frederick) Popular Engineering, with Chapters on Perpetual Motion, and 

 Engineering Schools and Colleges, /row^. and 704 woodcuts, 4to. cl. gilt, 45 1893 



7428 DYER (Alexander Brydie, U. S. Army) Handbook for Light Artillery, with 135 woodcuts, 

 er. Svo. (pp. 522), cl. , (Ss 6d (p. 12* 6d nett) New York, 1896 



7429 DYER (Joseph Chessborough ; inventor, abolitionist, and free-trader) Notes on Heat, in 

 Relation to Atmospherical Phaenomena, Svo. (pp. 20), sewn, 3s 1856 



'To Thomas Hopkins Esq'"'', with the Author's best respects'.— />isfj'.o)i title. 



The author was an interesting personality. Born at Stonnington Point, Connecticut, he came to England to pu.sh 

 American inventions, especially in spinning machinery, and was joint-founder both of the ' North American Rieview ' and of 

 the ' Manchester Guardian.' 



74.30 EARNSHAW (Samuel; pr., St. John's Coll., Cantab.)T\ie Doctrine of Germs, or the Inte- 

 gration of Certain Partial Differential Equations which occur in Mathematical Phj'sics, Svo. boards 

 (out of print), 3s Cambridge, 1881 



7431 Dynamics, or a Treatise on Motion, with short Treatise on Attractions, 3rd [last] 



Ed., revised, ivith diagrams, Svo. boards, 3s ibidem, 1844 



74.32 Partial Differential Equations : an Essay towards an Entirely New Method of 



Integrating them, or. Svo.c/., with auto, of Prof H. W. LI. Tanner, F.R.S. (out of print), 5s 1871 



7433 Treatise on Statics, containing the Theory of the Equilibrium of Forces, 3rd Edition, 



enlarged, with 5 folding plates, Svo. boards, 3s Cambridge, 1845 



Professor Earnshaw was the first to talte up the treatment of solitary waves. 



74.34 EASTMAN (John Robie, Prof. Mathematics, t/.S.N.) Report on the Difference of Longi- 

 tude between the U.S. Naval Observatory and the Sayre Observatory of Lehigh University, 

 with plate, 4to. (pp. 19), seton, 2s Washington, 1878 



74.35 Report on the Difference of Longitude between Washington and Detroit, Mich. ; 



Carlin, Nev. ; and Austin, Nev., 4to. (pp. 22), sewn, 2s ibidem, 1874 



7436 The Second Washington Catalogue of Stars, with the Annual Results upon which 



it is based : the whole derived from Observations at the U.S. Naval Observatory with the 8-5 inch 

 Transit Circle, from 1866 to 1891, and reduced to the Epoch 1875 0, 4to. sewn, SsQd ib., 1898 



