HENRY SOTHERAN & CO., 140, STRAND, W.C, AND 37, PICCADILLY, W. 253 

 4970 TYNDALL (John, f.r.s.) On the Absorption and Radiation of Heat by Gases and 

 Vapours, and on the Physical Connexion of Radiation, Absorption, and Conduction, plate 

 (pp. 39) : On the Absorption and Radiation of Heat by Gaseous Matter : Second Memoir, 

 2Uate (pp. 45)— 2 parts 8vo. sewn (scarce), os Qd 1861-2 



'The power to absorb ami the power to radiate Tyndall showed to be perfectly rwiiprocal. He alao established that, 

 as rejiards their powers of absorption and radiation, liquids and their vapours respectively follow the same order.'— D. N. B. 



t97 1 Address before the British Association at Belfast, with Additions, 8vo. cl. [out of 



print), 2s 6d 1874 



The Apologia pro Fide sua, much mishaDdled in the name of Religion at the tin»e. 



4972 Address to the Mathematical and Physical Science Section of the British 



Association, Norwich, August 19, 1868, 8vo. (pp. 6), sewn, with author's inscr., U [1868] 



• Mrs. Grittlth, pretented by Joh.v Tvso*uu'— fiuer. on title. 



4973 Comparative View of the Cleavage of Crystals and Slate Rocks, woodcut, Sto. 



(pp. 14;, sewn, 2s 6d 1856 



The account of the author's discovery Uiat preastire alone waa enough to produce the cleavage of «late roeka. 



4974 Contributions to Molecular Physics in the Domain of Radiant Heat: Memoir* 



from the * Philosophical Transactions' and * Philosophical Magazine', with Addition*, 2/olduur 

 plates, and numerous woodcuts, 8vo. d. (out of print), 9» (p. 16»T 1878 



' The astoumiin^' change in the de[>ortment of niatt«-r towards heat radiated from an obaews aooree wfcieh MOOailMalM 

 the aotof cheniii-al combination, an<i many otlior [K>int4i of equal inipurtanci', wers flrat eaUbUahed bjr \htm rmmtthf, 

 for which Tyndall receive«l the Hnn>fonl nunlal in 18tJ9. Thev have been gathered tosetliar in CSBnIHAvKoa* to JfalccnJar 

 I'hyncs. This volume also includes a series of striking experiments on the deeompoaitioo of Taponra by liglit, whanla 

 the blue of the firniainent and the polarisation of sky-light were shown to be dae to ezeeaaively Ane parUdM toiUng in 

 our atmosphere.'— D. N. B. 



4975 Essays on the Floating Matter of the Air, in relation to PUTRirACTiOM and 



Infection, woodcuts, post 8vo. cl., 3* 6rf (p. Is 6d) 1881 



Including the author's ingenious experiments to discover bacteria In Uie air by opUeal maana. It gave the first 

 impetus to the popularisation of the G«<rm Theory which has helfied so much to make Ufs intrrasUng to tha idla rlok. 



4976 Experiments on the Vibrations of Strings, 8vo. (pp. 9),seum, it 1888 



Faraday as a Discoverer— v. Nos. 1302-4, ante. 



4977 The Forms of Water in Clouds and Rivers, Ice and Glacibhs, new Ed., with JU$ 



front., and 34 other woodcuts, post 8vo. cl., 2s (ki (p. 5s) 1872. '3, '8. or 85 



4978 Fragments of Science for Unscientific People: a Series of detacned K«m^7*« 



Lectures, and Reviews, first edition, unth woodcuts, 8vo. el., 4s (p. Ms) lojl 



Including interesting sketches of Faraday. 

 4079 Third Edition [unaltered], 8vo, cl. [cheap copy), 3s (p. 14«) 1871 



4980 Fourth Edition [enlarged], loith woodcuts, 8vo. d., 6« (p. I4») 1872 



This edition contains his views on the relation In-tween science and theolojry, which Rave eaoae to a karn oontniTviaf ; 

 also an interoHtinsj new preface (pp. 14). and several new articles, vi:., On the I'hysical Baaia of Solar Cheoiiatfy ; On 

 Force ; and the Copley Sledalists of 1870 and ISTl [James Prescot Joule, and Julius Hubert v. Mayer]. 



4981 Sixth Edition [enlarged and rewritten!, with woodcuts and map, 2 vols, poet 8vo. r/ 



(cheap copy), Is 6d (p. 16«) 1879 



4982 P^ighth Edition, with woodcuts, and map, 2 vols, post 8vo. d., 9s M (p. 16#) 1892 



In this edition the article ' On Dust and Disease ' has Utn left out, and one on ' The Sky '«lded in iU ataad, and ooa, 



' The Sciiiitific U^e of Imagination ', modifled. 



4983 Heat considered as a Mode of Motion : twelve Lectures at the Royal Institution. 1882, 



first edition, with folding plate, and 100 woodcuts, post 8vo. d., or. A/, calf, 3« 6</(p. 12« Od) 188S 



4984 Second Edition, with Additions, plate, and 101 woodcuU, po6t 8vo. c/., Zs6d{p, 12« 6rf) 



1865 



4985 Another Copy, hf. calf gilt, 4s , ,« « jv .<>«« 



4986 Third Edition, with Additions, plate, and 108 woodcuU, poet 8vo. d.,is(p. llsfid) 1808 



4987 Fourth Edition, with folding plate, and 109 woodcuts, thick post 8vo. cl.,5t 1870 



This edition contains ' some account of my recent researches on the chemical reactions «»f l|Khl, ^^S^lJ^SLT'lS"!.* 

 dynamical point of view '.—Prefnt*. It also includes an explanation of the blue of the sky. and of tlte pOHrMBUM of tU 

 light, as well as an hypothesis rej^rding the constitution of comets, and remarks on tb« pularlaatioo of baat 



4938 Fifth Edition [enlarged], with plaU, and 108 woodcuts, iioat dvo. e^.. Bt (p. I0« 8«/)" 187« 



This edition contains a new chapter, and concluding a-ldltlons ; an article 'On Hlofiag Flamea' bow<i»rr, ooaUioad In 

 the 3rd and 4th editions, is left out. . - « «n i ioaa 



4989 Eighth [Final] Edition, with front, and 125 woodcuts, poet 8fo. c/., It (p. 12») 1800 



Containing three new chapters. IncIudlnR • The Labours of Mayer.' ._ . ^, ^ j»__ .u ..^ m.^ 



' In this work, which hat been rejcanled as the best of Tyndalls books, that dllBcalt iubject waa fbr tba nrti Umt 

 presented in a popular form.'— /X S. B. . . j » • ^ 



4990 Lessons in Electricity at the Royal Institolion, 1875-6, wUh 58 woodcuts, poet 8va ef., 



l.s Qd **'• 



4991 i^ Matiere et la FORCE: La Force: deux Conferences traduites par TAbb^ F. N-M. 



MoiGNO, ild. revue, i>ost 8vo. sewn (out of print), 1* 6rf J^ 



4992 New Fragments [of Science], post 8vo. d., 5s Orf (p. \0s6d) *wW 



4993 Another Copy, hf. green calf extra, uncut, t. e. g. (nice copy), IsHd 



4994 Notes of Lectures at the Royal Institution on Electrical Fhbnombna and THKORlvt. 



1870, new Ed , post 8vo. d.,ls6d ^ . ,««. ,i 



4995 Notes of Lectures at the Royal Institution on Light, 1869, post 8m tewn, \s 871, or 9 



4096 Another Copy, d., \s 6d . . , j. .u ?^ ' V- f 



J997 Uksearchks on Diamagnetism and Magne Crystallic Action, including the<iawtion 



of Diamagnetic Polarity, first edition, with 10 plates, and numerous woodcuU, 8vo. d., 6* etf 



/r» 14.e^ lo/V 



' He showed that the antithesis of the two forces was absolute : diamagnettem reaemWlnj? magnetUm aa to P'.*Urity and 

 all other characteristics, diflTering only by the substitution of repulsion for attrvrtion and rice •er» .-i/. n. if. 

 The above edition is the best, several papers having been left out In the later ones. 



