KNOWLI'DCI-:. 



Junk, 1915. 



Index of Spectra 



NEIV SERIES. 



Desij^ned to complete and bring up to date 

 the Index of Spectra and previous Appendices 



Appendix V contains Air. AUU-bar.iniiini, Aluniiniiini, 

 Atuntina, Annnonia, Antimony, Ar^jon. Aismii-, 

 Barium, Beiyllium. Hismuth. H<n(ni, Hroininc. 

 Cadmium. Caesium, CaUium, Carbon, Cassiopeium, 

 Ceviinn, Chlorine, I2s. 6d. 



Appendix W contains Chromium, Cobalt. Copper, Dys- 

 l>iusiuni. iMbiuni. ICuvopium, FIuorin<', and" Additions 

 antl Corrections to Appendix V." I'^s. 6d. 



The Index o! 

 Appendix B 



Appendix C 



Appendix D 



Appendix E 



Appendix F 



Appendix G 



Appendix H 



Appendix I 



Appendix J 



Appendix K 

 Appendix h 



Appendix M 



Appendix N 



Appendix 



Appendix P 



Appendix Q 



Appendix R 



Appendix S 

 Appendix T 



Appendix U 



Appendices B 

 Appendices J 



r/it* ofhcr f^iifts of this xi-ork arc : 



Spectra bound volume (includiiif; Ap[M-tulix A), £1 6s. 



[ lalilr .'I lornrtioiis to rrducc to KowKmd's standard, iiltr.i 

 vmpI. t s|«ctr.i oi in ;ind Ni, etc.). 3s. 6d. 



(Spectrum of Iron, tclltihc linos o( solar spectrum, spectrum of 

 HvtlroRcii), 7s. 6d. 



(Arc-sivctra of C.a, Li, Xa. K. Rh. Cs, Mg, Ca, Zii. Sr, Cd. Ba. 

 Hr, al»sorption s[Hctruin of Bromine, Arc-spectrum of 

 Aluminn). 5s. 6d. 



(Spectra of .Mr, Cu. Ap. Au, Al, In. TI, C, C.\, N, Si, ammonia, 

 and Table of reductions to vacuum), 4s. 6d. 



(The Arc-Spectra of Cr. Sn. Pb, SI>, Bi, flame -spectra of K, Na, 

 Li, Ca, Sr, Ba, etc.), Ss. 6d. 



(Rowland's Standard Wave-lengths, Spectra of Hg, He, Cd, 

 etc., and oxy-hydrogen spectra), 5s. M. 



(The three spectra of .\rgon, the arc-spectrum of Ti, the spark- 

 spectra of Cu, Ar, and Au), 5s. 6d. 



(The arc- and spark -six-ctra of Co and Ni, and " Index 

 Indicis "). 5s. 



(Thr spark-spectra of I'c and \V, and the arc- and spark- 

 spectra of Pt). 8s. 



(Spectrum of Chlorine, and the spark-spectnun of Mo) 5s. 

 /Spectra of Bromine, Gallium and Radium, and the spark- 

 spectrum of Uranium). 7s. 6d. 



i The arc-six'ctra of Mn and \', the spark-spectra of V, Au ami 

 Si, and the spLctrum of Argon), 6s. 



(Flame-sjxxtrum of Radium, iiifra-nd spectra of Alkalies, 

 ultra-violet spectrum of Thorium), 4s. 



(Arc-spectrum of Mo, spark-spectra ol Ca, Sc, In. Be Li, TI, 

 K, Cs, Sb, As, Ra). 49. 



(Arc- and spark-speclra of Rutli'iiinni, \'tliiuin ; Line- and 

 Band-spectra of Sulphur), 7s. 6d. 



(Spectra of Neon, Xenon, and Krvpton, and a second "Index 

 Indicis "), 4s. 6d. 



(Spark -spectrum of Cr; Arc- and spark-spectra of Pa, and th'' 

 S[X.-ctra of Polonium and Ex -radio), 5s. 6d. 



(Arc- and spark-spectra of Ir Os, and Rh), 10s. 6d. 

 (Arc- and sp;irk -spectra of Tantalum, Zirconium and Lan- 

 thanum), 8s. 



(Table of the Stronger Lines of the Elements, arranged accord- 

 ing to wave-Ienglh), 10s. 6d. 



to I inclusive, b<nirid in <nn.- volume, price £2 3s. 



to Q ., .. £2 8s. 



From "Nature," December 11th, 1913: — 



" ' Watts' Index of Spectra.'- — Yet another 

 series of Appendices to this most valuable com- 

 pilation of wave-length data has been commenced 

 by tlie pubUcation of Appendbc V." 



Post free from the Author. 



Dr. W. MARSHALL WATTS, 



"Shirley," Venner Road, Sydenham, London, S.E. 



LIFE -HISTORIES OF 



AFRICAN GAME ANIMALS 



By THEODORE ROOSEVELT and EDMUND HELLER. 



11/^// .Miiiiv llhislyalioiis and W Itiidui! .Mups. 2 Vols. 

 12s. net. 



'I'hcDilore Koosevrlt has usi'd lln' K'''''il'''' piirt "f His leisure 

 lime in the last several years in the preparation of this splendid 

 work, lie has produced it jointly with Kdmund Heller, of the 

 siienlilic department of the I'nited States National Museum, 

 who a(eompanied him on his famous African expedition. 



The general plan of each chapter is first to nivc an account of 

 tile l'".unily. then the name by which each animal is known — • 

 ICuKlisli. scientilie. and native ; then the geographical range, the 

 history of the species, the narrative life-history, the distinguishing 

 characters of the species, the coloration, the measurements of 

 specimens, and the localities from which specimens liave been 

 examined, accompanied with a faunal map. 



ll is one of the most important works in natural history and 

 I he onl\- coniprchensi\'e work of tlii^ kind in the Afri( ari field. 



EVOLUTION AND THE WAR. 



By P. CHALMERS MITCHELL, 



Sccixtuiy to the /Zoological .Society of London. 



2s. ()(/. net. 



War .\nd the Struggle for Existence — The Struggle 

 FOR E.xistence amongst .-Vnimals — Nationality and 

 Race — The Proouction of Nationality ; Selective Factors 

 — The Production of Nationality : Epigenetic Factors. 



LONDON: JOHN MURRAY. 



:: THE MAGIC :: 

 OF EXPERIENCE. 



A Contribution to the Theory of Knowledge. 



By H. STA.NLEV REDGROVE. 



With an Introduction by SIR W. F. BARRETT, F.R.s. 



Cro~u-n 8vo. 2s. 6d. net. 



A work on a branch of philosophy for the general 



reader, dealing respectivelv with " Idealism," "Mysticism." 



and " The Nature and Criteria of Truth " 



FATE AND FREEWILL. 



By A. SORABJEE N. WADIA. 

 Crown iS'ro. 2s. 6il. net cluth. 3.s-. 64. net leather. 



The Author traces the problem from the earliest times 

 as evidenced in the literature and scriptures of the ancient 

 world to our own period, and ends in showing how a 

 complete case is made for fate. 



Two Books by 



EVELYN UND ERHILL. 



PRACTICAL MYSTICISM. 



Crown Svo. 2s. 6d. net. 



.V.J//. ,;— -'The vi r.- .■l,..|M,.nr.. of this xvril.-r " 



THE MYSTIC WAY. 



Medium Svo. \2.s. dd. net. 



f\t:'h C hroi: !, !,■ ■■'I'lus ilc.-|.ly itUnrMiii- .tikI iii.i-l -liliiulatiilg volume." 



J. M. DENT & SONS, Ltd., 



179. ALDINE HOUSE. BEDFORD ST.. LONDON. 



