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



2729 LUNARDI (Vincent, Secretary to the Neapolitan Ambassador] ACCOUNT of the FIRST AERIAL 

 VOYAGE in ENGLAND, in Letters to his Guardian, CHEVALIER GHERARDO COMPAGNI, written 

 under the Impression of the various Events that affected the Undertaking; first edition, wifh 

 2 folding plates of the Balloon and Apparatus, 8vo. hf. brown calf neat, uncut (FINE COPY), with 

 author's auto, on half-title (RARE), 1. Is 1784 



An appendix contains attestations by eye-witnesses, and a poetical effusion addressed to the author. 



2730 ANOTHER COPY, sewn, WITH AUTHOR'S AUTO., 17* Qd 



2731 SECOND EDITION, with fine portrait (foxed] by BARTOLOZZI after COSWAY, but without 



the plates, 8vo. sewn, WITH AUTHOR'S AUTO., 18s Qd 1784 



'After various delays and apprehensions, Lunardi, having made his will, ascended from the Hon. Artillery Co. 's ground 

 at Moorfields on 15 Sept. 1784, in the presence of nearly 200,000 spectators. The balloon was about 32 feet in diameter, 

 and was filled with hydrogen under the direction of Dr. George Fordyce. He sailed over London at a great height, and 

 descended near Ware. The attempt excited great interest among all classes. . . . The king viewed the balloon through 

 a telescope from the Queen's presence chamber at St. James's. Several descriptions were printed, the best of which is 

 that written by Lunardi himself '.D. N. B. 



2732 ACCOUNT of FIVE AERIAL VOYAGES in SCOTLAND, in a Series of Letters to his Guardian, 



with fine portrait of the author in the uniform of the Hon. Artillery Co. by BURKE after NASMITH, 

 and 2 plates (different from those in the above work], 8vo. seivn (VERY RARE), 1. 11s Qd 1786 



2733 ANOTHER COPY, without the portrait, sewn, 1. 5s 



Containing at end Verses (pp. 10) ' To Mr. Lunardi, on his Successful Aerial Voyages from Edinburgh, Kelso, and 

 Glasgow ', by JAMES TYTLER, the first British aeronaut, in which the latter gives some interesting details regarding his 

 ' Edinburgh Fire Balloon '. 



2734 ACCOUNT of his ASCENSION and AERIAL VOYAGE, from the NEW FORT, LIVERPOOL, on 



the 20th of July, 1785, in Three Letters to GEORGE BIGGIN, with portrait by Mme. Bom, 'pupil 

 to F. Bartolozzi ' : ACCOUNT of his SECOND AERIAL VOYAGE from LIVERPOOL, 9th Aug., 1785, in 

 Two Letters to GEORGE BIGGIN 2 pamphlets, 8vo. sewn (VERY RARE), 1. 5s [1785] 



' He takes a high place among the pioneers of ballooning, his ascent having been made less than a year after the first 

 flight in a ' Moutgolfiere ' by Pilatre de Rozier, and only a few days after the ascent by John Tytler from Edinburgh on 

 27 August 1784 '. D. N. B. 



2735 : SAGE (Mrs., the First English Female Aerial Traveller) LETTER to a FEMALE FRIEND, 



describing the GENERAL APPEARANCE and EFFECTS of her EXPEDITION with MR. LUNARDI'S 

 BALLOON, which ascended from St. George's Fields on Wednesday, 29th June, 1785, accompanied 

 by George Biggin, Esq., third Ed., 8vo. (pp. 32), sewn (rare], 10s [1785] 



2736 LTJTSCHAUNIG (Victor) La THEORIE du NAVIRE, traduit par G. M. AURADOU; with 

 diaarams, roy. 8vo. hf. morocco gilt (scarce], Is Qd 1885 



2737 LTJYTS (Jan) ASTRONOMICA INSTITUTIO, in qua Doctrina Sphaerica atque Theorica, intermixto 

 usu Sphserse Ccelestis, et variis Chronologicis, pertractantur ; with fine engraved front, by J. 

 Mulder containing 6 portraits of the chief Astronomers, charts of the moon, and numerous engrav- 

 ings in the text, 4to. old calf gilt (fine copy], with bookplate of Philip 2nd Earl Stanhope, F.R.S., 

 IsQd Trajecti, 1692 



An adaptation of the system of Tycho Brahe, the author rejecting the Copernican system as opposed to the Bible. 



2738 LYDAL (Thomas, Accomptant to the Commissioners of H.MJs Revenue of Excise] VULGAR and 

 DECIMAL ARITHMETIC, demonstrated and made easie to the Meanest Capacity, 12mo. contemp- 

 orary panelled sheep (rare\, 15s 1710 



The above work, professedly written to supply the want of a work on Arithmetic based on 'plain and easie' rules, is 

 rare. There was no copy in Prof, de Morgan's collection. 



2739 LYON (John, Professor of Mathematics, near Sommerset House in the Strand] An APPENDIX 

 touching REFLECTIVE DIALLING (Direct Dialling Ly a Hole or Nodus ; Dialling for the Weather ; 



Refracted Dialling ; Reflected Dialling from any Horizontal Glasse ; from any Reclining 



Glasse), sm. 4to. (pp. 26), sewn, Is Qd 1658 



2740 LYON (John, pr., historian of Dover] EXPERIMENTS and OBSERVATIONS with a View to point 

 out the ERRORS of the present RECEIVED THEORY of ELECTRICITY ; tending to establish a New 

 System on Principles conformable to the simple Operations of Nature, 2 folding plates, 4to. sound 

 tall copy in old calf, 9s 1780 



'The electric fluid is nothing else but the particles which have been diffused from the sun through the different elements 

 of water, earth, and air.' Intro. The work is especially directed against Benjamin Franklin's theories. 



2741 McADIE (Alexander) MEAN TEMPERATURES and their CORRECTIONS in the UNITED 

 STATES, roy. 4to. (pp. 45), sewn, 2s Washington, 1891 



2742 McATJLAY (Alexander, Univ. Tasmania] UTILITY of QUATERNIONS in PHYSICS, 8vo. cl, 

 3s Qd (p. 5s nett) 1893 



Applying quaternions to the study of elastic solids, electricity and magnetism, hydrodynamics, and the vortex-atom 

 theory. 



The preface contains an indictment of Cambridge University for its unaccountable neglect of the study of quaternions. 



2743 MACDONALD (Hector Munro, F.R.S.) ELECTRIC WAVES (Adams Prize Essay), large 8vo. 

 c/., 6s (p. 10s) Univ. Press, Cambridge, 1902 



2744 MACDONALD (Sir John Denis, M.D., R.N., F.R.S.) GUIDE to the MICROSCOPICAL 

 EXAMINATION of DRINKING WATER, with 24 lithographs of numerous micro-organisms, 8vo. cl., 

 3s Qd (p. 7s Qd) 1875 



2745 SOUND AND COLOUR, their RELATIONS, ANALOGIES and HARMONIES ; with colour charts, 



sections of the eye and ear, and musical staves with notes in colours, 8vo. cl. (SCARCE), 10s Qd 1869 

 Probably the earliest work referring to this curious subject. The author began his scientific career by serving on the 

 celebrated exploring voyage of H.M S. Herald. 



2746 MACDONALD (William J., F.R.S.E.) HIGHER GEOMETRY, with diagrams, fcap. 8vo. cL, 

 ]sQd Edin., 1890 



2747 MACFARLANE (Alexander, F.R.S.E.) PHYSICAL ARITHMETIC, woodcuts and diagrams, 

 cr. 8vo. cl., 3s Qd (p. 7s Qd] 1885 



1 The method here developed may be called the equivalence method. Each quantity is analysed into unit, numerical 

 value, and, when necessary, descriptive phrase.' Preface. 



