368 HENKY SOTHEKAN & CO., 140, STKAND, W.C., AND 37, PICCADILLY, W. 



7211 DEALTRY (William, f.r.s. ; Archdn. of Surrey) The Prixciplhs of Fluxions, 2ad Eiiition, 

 enlarged, with numerous diagrams, large 8vo. hf. morocco gilt {scarce), 10* Qd 1816 



' A useful manual for students.'— D. N. B. 



7212 DEBUS (Heinrich; f.r.s.) Uber die Zusammensetzung der Wackenroder'schen Flus- 

 SIGKEIT und die Bildungsweise der darin vorkommendea Korper : Chemische Theorie des 

 SCHIESSPULVERS, II. Abliandlung — 2 pamphlets post 8vo. sewn, with inscr. to Prof. A. W. 

 Williamson, F.R.S. 'from his friend the Author ,' 2s 6d Leipzig, 1887-91 



7213 DECKER (Ezechiel de, rekenmeester, Goudd) Nieuwe Telkonst, inhoudende de Logarithmi 

 voor de Ghetallen beginnende van 1 tot 10,000, ghemaeckt van Henrico Briggio, Professor van 

 de Geometrie tot Ocxfort; mitsgaders de Tafel van Hoeckmaten ende Raecklijnen door het 

 ghebruyck van Logarithmi, door Edmund. Guntero ; welcke ghetallen eerst ghevonden zijn van 

 Joanne Nepero Heer van Merchistoun ; met Arithmetische, Geometrische ende Spherische 

 Exempeln; vnth diagrams^ 8vo. contemporary Dutch vellum (sound copy) ; rare, £1. 10s 



Goude, P. Rammaseyn, 1626 

 The first DrxcH table of logarithms, compiled in collaboration with Adriaen Vlacq, from the works of Napier, 

 Briggs, and Gunter. 



7214 DECUPPIO (Conte Pompilio) Due Frammenti Selenografici ; with plate, 8vo. (pp. 27*, 

 sewn, 25 Roma, 1840 



COLIN MACLAURIN'S COPY OF THIS EXCESSIVELY RARE WORK : 



7215 [DEE (* Dr.' John ; Warden of Manchester Collegiate Church, and alchemist and magician to 

 Q. Elizabeth)'] General and Rare Memorials pertayning to the Perfect Arte of Navigation : 

 Annexed to the Paradoxal Cumpas, in Playne: now first published : 24. yeres, after the first 

 Inuention thereof, with fine woodcut on title showing several ships, with Q. Elizabeth on board the 

 largest, and beautiful ivoodcut with Sir Christopher Hatton^s arms on last I., also several large wood- 

 cut initials, sm. folio, hf roan (3 II. in very neatly written MS , and first ^11. of the ' Advertisement ' 

 wanting, also corner of title mended ; otherwise a sound copy), with auto. Co : MacLaL'RIN [f.r.s., 

 celebrated mathematician, 1698-1746] on title, £6. 6s [col. .] Printed by John Daye, 1517 



Ax EXCESSIVELY RARE WORK, ONLY 100 COPIES HAViNT, BEEN pRiNTKi). The running title is ' The Brytish Monarchie ', 

 and after p. fit ' Georgii Geinisti Plethonis de Rebus Pelouounesi Oratioues II '. There is also a dedication in verse to 

 Sir Christopher Hatton. 



The work was intended as a preface to a larger one on the same subject, wliich had never been printed. The adver- 

 tisement and preface of the above are reprinted in Boloe's Ann-dotes, v. II, and in Chatham MisceUanies, v. I, On p. 38 is 

 a paragraph, ' Of what importance It is, to be Lords of the Seas ', ending with ' God graunt us the verity and frute, of this 

 Sea Souerainty, every way : and that with all Oportunity.' 



The above copy was sold at auction in 1005, when it fetched £11. os. 



7216 Parallaticae Commentationis Praxeosque Nucleus quidam [edente, cum Praefa- 



tione ad Lectorem, TliOMA Digges] ; with arms on title, and numerous diagram'^, sm. 4to. sewn 

 (LARGE AND SOUND COPY) ; RARE, £1. 5* Londini, apud Johanneni Dayum, 1573 



Though chiefly known now as an astrologer, Dr. Dee was one of the most eminent English mithematicians'uf his tim:^, 

 John Davis, in his ' Seaman's Secrets ' (15iM), remarking, 'for theoretical speculations and most cunning calculation, 

 M. Dee and M. Thomas Herriotts are hardly to be matched.' 



7217 Private Diary, and Catalogue of his Library of Manuscripts, from the Original 



MSS. in the Ashmolean Museum, Oxford, and Trinity College Library, Cambridge, edited by 

 James Orchard Halliwell [-PhillippsJ, f.r s., cr. 4to. cl., 5s Camden Soc, 1842 



V. Euclid, post. 



7218 DEEBLE (E. B., patentee) Plan for the Introduction of the Patent Metallic Caisson, 

 in forming Piers, Breakwaters. Locks, Quays, Docks, Mill-Dams, etc., with Comparative State- 

 ments of the Costs of Stone and the Metallic Caisson, with front, of proposed new harbour 

 at Dover, and 7 plates, 8vo. boards, Is Qd 1827 



7219 Second Edition, ivith front, {different from the above), and 9 plates, 8vo. boards, 



7s Qd 1828 



7220 DEIDIER (Abbe N.) Les Calculs Differentiel et Integral expliques et appliques k la 

 Geometric, avec Traite sur la Maniere de resoudre les Equations de quelque Degr^ qu'elles soient, 

 etc., etc. ; with 2Q folding plates, 4to. hf calf, 5s 1740 



7221 Le Parfait Ingenieur Francois, ou la Fortification Offensive et Defensive, con- 

 tenant la Construction, I'Attaque et la l)^fense des Places selon les Methodes de M. de Vauban, 

 etc.; nouvelle Ed., augmentee des Sieges de Lille et de Namur; with front, by Cochin, and 50 

 folding plates, thick 4to. contemporary calf, 8s 6d 1742 



7222 Another Copy, old calf with auto, of Gen. Robert Melville, F.B.S. (1723-1809), inventor 



of a naval gun, lOs 



'Ses nombreux ouvrages lui assurent une place distinguee parmi les math^maticiens de son temps.'— liiogrr. Gen. 



7223 DELAMBRE (Jean Baptiste Joseph, de VInstitut; f.r.s.) Abreg6 d'AsTRONOMiE, ou 

 Lecons Elementaires d'Astronomie Theorique et Pratique ; with 14: folding plates, 8vo. old calf, 

 newly rebacked, 5s 1813 



Largely mathematical. 



7224 DELANO (William Henry) Twenty Years' Practical Experience of Natural Asphalt 

 and Mineral Bitumen, ivith 33 woodcuts, post 8vo. parchment n-rapper, 2s 1893 



7225 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. boards, uncut {rare), 

 \2s Qd 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.', for which he was awarded the gold medal of the Royal Society. 

 The work is still valuable for its investigations on the colouring of glass. The above copy belonged to Richard Watson, 

 F.R s., the absentee Bp. of Llandaff (17.37-1818), and bears his Calgarth Park booklabel. 



DELUC (Jean Andre) — v. I^uc, post. 



