HENRY SOTHERAN & CO., 140, STRAND, W.C., AND 37, PICCADILLY, W. 51 



991 DELAFOSSE (Gabriel) RAPPORT sur les PROGRES de la MINERALOGIE, impl. 8vo. sewn, 

 2s Impr. Imper., 1867 



992 DELAMAINE [the Elder] (Richard) GRAMMELOGIA, or the MATHEMATICALL RING, showing 

 (any reasonable Capacity that hath not Arithmeticke) how to RESOLVE and WORKE all 

 ORDINARY OPERATIONS of ARITHMETICKE, and those which are most difficult with greatest 

 facilitie : the EXTRACTION of ROOTS, the VALUATION of LEASES, etc. the measuring of Plaines and 

 Solids, with the RESOLUTION of PLAINE and SPHERICALL TRIANGLES, and that onely by an 

 Ocular Inspection, and a Circular Motion, with folding plate, and engraved diagrams, 12mo. 



(pp. 30) sewn (VERY RARE), 2. 5s J. Haviland, 1630 



This rare edition is not noticed by the author's biographer in D.N.B. The only edition contained in Brit. Mus. is that 

 of 1631, with a differently worded title. The work is intended to express ' the speech in lines ' in imitation of Napier's 



Rabdologia ', and contains an attack on W. Oughtred. 



993 The MAKING, DESCRIPTION, and USE of a SMALL PORTABLE INSTRUMENT for the 



Pocket (or according to any Magnitude) in form of a mixt Trapezia, thus called a HORIZONTALL 

 QUADRANT, with engraved title, fine copperplates on movable slips, and ivoodcut diagrams, 12mo. 

 contemporary calf (FINE COPY), with bookplate of Philip 2nd Earl Stanhope, F.R.S. (RARE), 

 1. 155 W. Leake [1631] 



PRESENTATION COPIES FROM TALLEYRAND : 



994 DELAMBRE (Jean Baptiste Joseph, de I'Institut) ASTRONOMIE THEORIQUE et PRATIQUE ; 

 with 29 folding plates, 3 vols. 4to. contemporary hf. calf; presentation copy from Talleyrand 

 to the Duke of Gloucester, with Sandhurst College bookplate, \ls 6d 1814 



' Given to the Duke of Gloucester at Paris by Prince Taleyrand [sic] Feb 7. 1819.' Inter, on flyleaf. 



'Un enchatnement des plus heureux y rend facile et presque populaire 1'intelligence des resultats les plus sublimes; 

 chaque page y porte 1'empreinte de 1'invention et du genie, et 1'entendement se rdcree et se dglasse a suivre dans son 

 ensemble cette serie de forrnules elegantes, de demonstrations ingenieuses qui n'appartiennent qu'a 1'auteur.' Fourier. 



995 HISTOIRE de 1'ASTRONOMIE ; with fine portrait by Desmoulins, and plates, COMPLETE 



in 6 vols. 4to. contemporary hf. calf, presentation copy from Talleyrand to the Duke of 

 Gloucester (as above] ; RARE, 7. 1817-27 



CONTENU: Astronomic Ancienne, 2 v., '17 : Astronomic du Moyen Age, '19 : Astronomic Moderne, 2 v., '21: Astronomic 

 an XVIlIe Siecle, public" par C. L. Mathieu, '27. This important work is the first history on a strictly scientific basis, freed 

 from all mythological conceptions and errors that had hitherto disfigured all similar works, and showing chronologically 

 in a masterly manner the steady advance of the science. 



996 : TABLES ASTRONOMIQUES publie'es par le Bureau des Longitudes de France, I e Partie : 



TABLES du SOLEIL, par M. Delambre. TABLES de la LUNE, par M. Burg, '06 : II 6 Partie. 



NOUVELLES TABLES de JUPITER et de SATURNE, par M., Bouvard. Nouvelles Tables ecliptiques 

 des Satellites de Jupiter, par M. Delambre, '08 : TABLES ECLIPTIQUES des SATELLITES de JUPITER, 

 par M. Delambre, '17 3 vols. 4to. in 1, contemporary hf. calf, presentation copy from 

 Talleyrand (as above), 12s Qd 1806-17 



997 - - METHODES ANALYTIQUES pour la DETERMINATION d'un ARC du MERIDIEN, preeedees 

 d'une Memoire sur le mme sujet par A. M. LEGENDRE ; with 2 plates, 4to. sewn, uncut, 12s 6d 



An VII (1799) 



Appointed by the French Government, the author measured in 1792 the arc of the meridian between Dunkirk and 

 Barcelona, which was completed in 1799 by Laplace, etc., and served as the basis of the metric system. 



998 - -RAPPORT HISTORIQUE sur les PROGRES des SCIENCES MATHEMATIQUES depuis 1789, et 

 sur leur etat actuel, 8vo. boards, with Prof. Williamson's auto., 5s 1810 



999 TABLES de JUPITER et de SATURNE, 4to. sewn, uncut, 7s 6d 1789 



First Edition of the author's first published work. ' These tables were found to surpass greatly in accuracy those of all 

 preceding astronomers '. Prof. R. Grant. 



1000 - , et Pierre Francois Andre MECHAIN : BASE du SYSTEME METRIQUE DECIMAL, on 

 Mesure de 1'Arc du Meridien compris entre les Paralleles de Dunkerque et Barcelone, executee en 

 1792 et Annees suivantes ; with numerous folding plates, 4 vols. 4to. contemporary calf gilt (binding 

 ofv. IVnot quite uniform and joint cracked otherwise a sound and large copy) ; RARE, 3. 10* 1806-21 



The account of the important meridian measurement which served as basis for the metric system. 



'Si Ton considere 1'importance du sujet, les questions d'astronomie, de geographie et de physique qu'il fut necessaire 

 de traiter, les noms celebres des savants franc.ais ou etrangers qui concoururent a cet examen, les consequences capitales 

 et durables de ce travail, on peut dire qu'aucune autre application des sciences n'est comparable a celle-ci, et n'otfre le 

 meme caractere d 'exactitude, d'utilite et de grandeur'. Fourier. 



1001 DELAMOTTE (Philip Henry, F.S. A.) The PRACTICE of PHOTOGRAPHY : a Manual for Students 

 and Amateurs, with calotype portrait taken by the collodion process, post 8vo. cl. boards (scarce), 

 10* Qd 1853 



The first handy-book of photography. It contains a full account of the collodion process on glass, and a number of 

 recipes then in use for all photographic processes. 



1002 DELAUNAY (Charles Eugene) RAPPORT sur les PROGRES de 1' ASTRONOMIE, impl. 8vo. 

 sewn, IsQd 1867 



1003 - - TRAITE de MECANIQUE RATIONNELLE ; with 126 woodcuts and diagrams, 8vo. hf. calf 

 neat, 4s 1856 



1004 - QUATRIEME EDITION ; with 116 diagrams, 8vo. hf morocco (out of print), 6s 1866 



1005 DELAY AL (Edward Hussey, F.R.S.) EXPERIMENTAL INQUIRY into the CAUSE of the CHANGES 

 of COLOURS in OPAKE and COLOURED BODIES, with Historical Preface, 4to. sewn (rare), 10s 6d 1777 



Including the author's 'Experiments and Observations on the Agreement between the Specific Gravities of the several 

 Metals, and their Colours when united to Glass, etc.' 



DELUC (Jean Andre) v. Luc, post. 



DE MORGAN (Augustus) v. MORGAN, post. 



1006 DEMPSEY (G. Drysdale, C.E.) The BUILDERS' GUIDE in Materials and Construction, 2nd Ed., 

 with Supp'ement and Appendices, 230 ivooodcuts, Svo. cl., 4s (p. 1. Is) 1857 



