846 HEJNKY SOTHEKAN & CO., 140, STRAND, W.C., AND 43, PICCADILLY, W. 



ASTRONOMY and GEODESY, continued: 



15918 WEISS (Edmund; Prof. Astronomy, Vienna] BILDER- ATLAS der STERNENWELT, 2. 

 \ermehrte Auflage ; with 39 plates (many coloured], besides text-illustrations, folio, original 

 hf. cl., Is (p. M. 12) Esslingen, 1892 



16919 WHITE (Charles Joyce, Harvard Univ.] The ELEMENTS of THEORETICAL and DESCRIP- 

 TIVE ASTRONOMY ; 7th Edition, revised, with 84 illustrations, post 8vo. cl., 4s Qd (p. 85 Qd nett) 



New York, 1905 



16920 WOLF (Maximilian Franz Josef Cornelius ; Prof. Astronomy, Heidelberg) Die MILCH- 

 STRASSE : Vortrag in der 79. Versammlung Deutscher Naturforschcr und Arzte ; with 10 plates 

 and 53 text-illustrations, large 8vo. cl. boards, 2s Qd (p. M. 4) Leipzig, 1908 



16921 STEREOSKOPBILDER vora STERNHIMMEL, I. SERIE ; with 12 fine stereoscopic vieivs* 



narrow 8vo. in hf. cl. portfolio, 3s (p. M. 5) ibidem, 1908 



16922 WOLF (Rudolf, Univ. Zurich) HANDBUCH der ASTRONOMIE, ihrer GESCHICHTE und 

 LITTER ATUR ; with very numerous illustrations, 2 vols. large 8vo. in 1 (pp. 1360), handsomely 

 bound in hj . pigskin, d. sides, uncut, t. e. g., 1. 2s Qd (p. M. 32 sewn) Ziirich, 1890-3 



Invaluable as a work of reference from the copious bibliographies of historical works added to each chapter, division, 

 and sub-division. 



16923 YOUNG (Charles Augustus, Prof. Astronomy, Princeton Univ.) TEXT-BOOK of GENERAL 

 ASTRONOMY for Colleges and Scientific Schools, revised [latest] Edition, with frontispiece of the 

 Lick telescope and 246 illustrations, 8vo. original hf. roan (as fresh as new), 7s Qd (p. 12$ Qd) 



Boston [Mass.], 1900 



PHYSICS: 



16924 AIRY (Sir George Biddell, F.R.S., Astronomer Royal] On SOUND and ATMOSPHERIC 

 VIBRATIONS, with the Mathematical Elements of Music ; 2nd [last] Edition, with 2 plates, post 

 8vo. cl., uncut (o. p.), 5s (p. 9s) 



16925 On the UNDULATORY THEORY of OPTICS ; new [last] Edition, with 2 folding plates, 



post 8vo. cl. (o. p.), 5s 1877 



16926 AIRY (Osmund; LL.D.) GEOMETRICAL OPTICS, illustrated, large 12mo. cl. (o.p.), 3s 1870 



16927 ALDIS (William Steadman, Prof. Mathematics, Univ. Coll., Auckland, N.Z.] A CHAPTER 

 on FRESNEL'S THEORY of DOUBLE REFRACTION, with diagrams, 8vo. cl. cover, Is Qd 



Cambridge, 1870 



16928 ANDRADE (Jules, Univ. Rennes] LECONS de MECANIQUE PHYSIQUE ; with diagrams, roy. 

 8vo. buckram, uncut, Qs (p. F. 10 nett sewn) 1898 



16929 Le MOUVEMENT : Mesures de 1'Etendue et Mesures du Temps ; with 46 illustrations, 



8vo. cl., or, buckram, 3s (p. F. 6 nett) 



16930 ANGLAS (J.) PRECIS d'AcousTlQUE physique, musicale, physiologique ; with 122 illustra- 

 tions, large 8v r o. hf. black morocco neat, cl. sides, t. e. g. (as good as new), 8s Qd (p. F. 12 nett sewn) 



1910 



16931 ANTOMARI (Xavier) LECONS de CINEMATIQUE et de DYNAMIQUE, suivies de la Determina- 

 tion des Centres de Gravite ; with diagrams : LECONS de STATIQUE ; with diagrams 2 vols. 8vo. 

 in 1, hf. black morocco neat, cl. sides (nice copy], 5s 1902-1897 



16932 APPELL (PaulEmile, de I'Institut] COURS de MECANIQUE, 2 e Edition, entierement refondue ; 

 with numerous illustrations, 8vo. handsomely bound in hf. black morocco, cl. sides, t. e.g., Is 

 (p. F. 12 nett sewn) 



16933 - TROISIEME [DERNIERE] EDITION, entierement refondue ; with 191 illustrations, 8vo. hf. 

 black morocco neat, cl. sides, t. e. g. (as good as new], 8s Qd (p. F. 12 nett sewn) 



16934 - - LECONS sur 1' ATTRACTION et la FONCTON POTENTIELLE, redigees par M. CHARLIAT ; 

 with 24 diagrams, roy. 8vo. red buckram (scarce), 4s Qd * 1892 



16935 TRAITE de MKCANIQUE RATIONNELLE ; 2 e Edition, entierement refondue, avec Note 



par E. et F. COSSEKAT sur 1'Action Euclidienue ; with numerous diagrams, 3 vols. roy. 8vo. 

 handsomely bound in hf. pigskin, cl. sides, uncut, t. e. g. (fine copy], 1. 10s (p. F. 60 nett sewn) 



1902-9 



CONTENT: I. Statique. Dynamique du Point: II. Dyiiamique des Systomes. Mecanique Analytique : III. 

 Equilibre et Mouvenient dcs Milieux continus. 



16936 , etT. DAUTHEVILLE, Univ. Montpellier: PRECIS de MECANIQUE RATIONNELLE : 



Introduction a 1'Etude de la Physique et de la Mecanique appliquee ; t0#A222 diagrams, roy. Svo. 

 (pp. 729), handsomely bound in hf. pigskin, cl. sides, uncut, t. e. g., 16s (p. F. 25 nett sewn) 1910 



16937 BALL (Sii Robert Stawell, F.R.S., Lowndean Prof. Astronomy and Geometry, Cantab.) 

 TREATISE on the THEORY of SCREWS, with frontispiece and numerous diagrams, large roy. Svo. 

 d., uncut, 12s Qd (p. 18$ nett) Univ. Press, Cambridge, 19 



The standard work on its subject. Pp. 510-39 contain valuable ' Bibliographical Notes.' 





