INDEX. 



171 



drouth of plant- in darkness 177 



" of plants in light 



(iiiln on daguerreotype L'L'.'i 



linn-barrel ignition expei imeut !.". 



II. 

 Heat distribution in spectrum... 100,383 



' elVeet Of, On pllOSpho: 



nice ir.ii, H;L', it;:, 



" invisible action of, on carbonic 



acid 183 



" measurement of, in spectrum. . IK) 

 " radiation <it', at different tem- 

 peratures 43 



" rays and cliemical rays, their 



analogies _':'.( i 



Henry on phosphorescence 318 



Herschel on hent radiations 7'. 



" on photographic spec- 

 trum 418,420 



" on spectrum scale 127 



Henmann on flame GO 



Ilori/uutal clement of flames ana- 

 lyzed :-l, 1:1 



Huggins on nebula in Draco 82 



Hydrogen flame, spectrum analysis of ~>~> 



" its relation to chlorine L'iH 



" substituted by chlorine. . . .'!>', 



" union of, with chlorine 'Jiis 



Hypothesis of vision 101 



I. 



Ignited solids, their spectra 31 



Ignition of platinum, apparatus for. . 26 



" " " on Laplace's co- 

 efficient 30 



Ignition, temperature of, by Davy.. . . 23 



4 ' " by Newton . 23 



Incandescence, temperature of 23 



India-rubber, endosmosis through... .'>."/ 7 



Inflammation, explanation of 380 



Ingenhousz, experiments of 180 



Intensity of light, effect of. 439, 448 



Interference of radiations. . . !:.', L'4o. 4.~i4 



Inverse vision Ill 



Iodide of silver, its decomposition. . . 40C> 



Iodine cannot decompose water 4 I " 



" corrodes daguerreotype plate. L"_'> 

 Isinglass on daguerreotype plate L'l'7 



J. 



Jamin, quotation from 85 



K. 



Kirchoff on fixed lines 84 



" on spectrum analysis 86 



Kunckel, the alchemist 134 



L. 



Lamansky on fixed lines 384 



Lavoixier, chemical theory r.f 62 



l.cm.-rv, theory i.f pln,-p!i .,re- 



ii. > ;7, J04I 



Leyden upark 



I. .in.-, incandescence of, compared 



with electric spark 



Light, action of, on daguerreotype. 



dccoliqH.es chlorine Uatn 



" intensity of, at different tem- 

 peratures 41 



" magnetism of i;i| 



" tran-li'ivnce of energy 117 



Lunar photography -_'14 



M. 



Magnetism of light 



Mascart on cadmium !!.'." 



Measuring lens _'(;.-, 



Mechanical hypothesis nf vision in* 



Melloni on heat radiations l - .'9 



Melloni's critique 46 



Mercuriali/.ation of daguerreotype. . . 211 



Mercury, tides on 



Metals not phosphorescent 140 



Microscopic photography 



Milloii on bleaching com|>ounds L".','{ 



" on carbon com]M>umls 



Mirrors, action of light on '_'_'<> 



Modified chlorine 1'7I 



Moon, phosphorescent picture of 1I2 



4 ' photographic picture of. . 2 1 M. _' 1 4 



" rays of heat of. i::i 



Mosotti on wave-lengths 1 1 '2 



Mllller on heat distribution 883 



N. 



Nebulae, spectra of 32 



Negative rays 87 



Newton on decomposition of light. .. 128 



" on temperature of ignition 

 Nitrogenized bodies, allotropi-m <>t 

 Nonentity, flume passes into 1'JO 



O. 



Ocelli, their use in vision 1 1 >-' 



Octaves, effect of, in decomposition . 1 J^ 



" several seen by eye 1 L'.'J 



Oil-flame, spectrum aiiah -is ,,f 



( (ptical qualities, control of. 



Organic matter, production of. .... 

 Oxvgcn, combustion in 68 



P. 



Passive and active states oi chlorine. 801 

 " condition, etlec: 



Phantom images 



" subjective 107 



Phosphore-ceuce 183 



bodies, ignition 



their volume. 142 



