TOPICS IN GENERAL 



853 



SOURCE, Plato finds matter, 



of evil 2316 



, Pollution of the 2645 



, Protective mimicry a, 



of confidence 2250 



, Sun the, of earth's life. . 3303 



, Sun the, of plant-life . . 1936 



, Sun the, of terrestrial 



energy 3302 



of the Sun's heat *3155 



, Sun's heat, of terres- 



trial motion. 



613 



of the Winds *3156 



SOURCES, Varied, of light .. 1944 

 SOUTH AFRICA, Heat and 



cold in 637 



, Travels in 637 



SOUTH AMERICA, Cactus in 3707 

 , Innumerable variety of 



orchids in 337 



, Native dogs of 898 



, Steppes of 2854 



SOUTH SEA, House and feast 



in, Islands 593 



SPACE, Absolute zero of .... 1461 

 , the Chill of celestial 2240 



Draining plants of heat 2818 



, Earthly elements 



widely different in 995 



, Ether pervading 1084 



, Exalted ideas of 877 



Filled with luminifer- 



ous ether *3157 



Full of meteorites 2160 



.Gravitation holds 



through 3556 



Immeasurable 3160 



Impenetrable *3158 



, Infinite, not religious. . 1655 



, Infinity of 1971, *3159-60 



, Intense pleasure annuls 3420 



.Journey of birds 



through trackless 1778 



, Light once believed to 



pass instantly through 1068 



, Light pervades all 1930 



, Location of objects in. . 1979 



, Man loves to divide . . . 2483 



Man's thought sweeps 



all. 



2985 



-, Material supplied to 



earth from *3161 



, Matter from 933 



, Matter in, and time ... 2118 



Must be conceived as 



infinite 1659 



, Open, for playground. . 171 



, Our system but a cor- 

 ner of 1197 



, Rays sent across a 



measured 3630 



, Relation of conscious- 

 ness to 2329 



, Slight inaccuracy vit- 

 iates results in 1050 



, Soundlessness of 3242 



, Sun's heat poured 



through empty 3695 



and Time infinite 1654 



Writing across 3789 



SPACES, Celestial, cool plan- 

 ets 2613 



, Light passes unchanged 



through abysmal 1942 



, Matters from celestial, 



in atmosphere 3124 



SPAN as a Unit of measure- 

 ment 2129 



SPANIARDS "Building their 



own sepulchres" 2557 



SPAR, Iceland, refracting 



light 2853 



SPARK Produces conflagra- 

 tion 976 



SPARROW, Destruction of 



the 1620 



, the Shrike has foot of. . 3521 



SPARROW-HAWK Devours 



destroyers of crops 2769 



SPARROWS, Migration of ... 2174 

 , Young, learn timidity. . 3441 



SPARTA, Precious metals 



banished from 791 



SPARTACUS in Vesuvius 



SPECIALIST, Narrowness of. 



SPECIALISTS, Agreement of, 

 the test of authority 



in German universities. 



SPECIALIZATION of Move- 

 ments 



SPECIALTY Disqualifies for 



comprehensive reasonings. 



, Language woman's. . . . 



SPECIES, Absoluteness of, a 

 fallacy 



, Darwin's theory on the 



origin of. ... . . 3894-9 



Defined *3164 



, Distinct, of bacteria. . . 3164 



, Domestic, spared by 



2054 

 2353 



2456 

 2028 



*3162 



2353 



1835 



*3163 



ancient barbarians. 



, Exterminated 



, Extinction of 



, Gradations of 



of Humming-birds .... 



Limited to locality 



505 

 1138 

 1168 

 2526 

 1518 



1425 



Humming-birds. 



, Links between Ameri- 

 can and European 1977 



Once abundant, now 

 extinct *3165 



of Orchids 3491 



-, Origin of 3258 



, Supposed, proved va- 

 rieties *3166 



United by gradation of 



varieties 3470 



SPECIFIC, Work a. . . , 3766 



SPECIMENS of Animals ver- 



rify theory 3485 



, Complete, give mean- 

 ing to fragments 2554 



, Improvement by breed- 

 ing from best 95 



.Numerous, of fossil 



fishes 1870 



Once vaguely located .. 1126 



SPECKS in Field of vision 



unnoticed 1609 



, Naked , of protoplasm . 695 



SPECTACLE of Action stim- 

 ulates action *3167 



, Terrifying 3095 



, Unexpected astronom- 

 ical 889 



SPECTACLES, Reflections 



from, ignored 1609 



SPECTATOR, in Artist's few 



lines, sees the face 2206 



SPECTER, The, of the Brock- 

 en 1564 



SPECTERS haunting a 



scholar.. 2577 



Seen in delirium trem- 



ens 3657 



SPECTROSCOPE, Advanta- 



ages of the 94 



, Correction of error by . 1059 



Determines approach 



of star 2265 



Helps solve mystery of 



aurora *3168 



, Identification of metals 



by 1939 



Measures speed of stars 876 



? Revelations of the . 2908, 3488 



and Sun's corona 2330 



Supplements telescope. 263 



SPECTRUM, Acceptance of 



teachings cf 3508 



, Colors 9f 545 



, Extension of the 1161 



, Fraunhofer's lines give 



new meaning to the 3571 



, The Lines of the 1119 



, Newton discovers the. . 3334 



, Rays of, rich in heat . . . 2686 



Seen in darkness 1565 



of Sirius 994 



, Sodium found in, of a 



comet 3558 



SPECTRUM ANALYSIS Ac- 

 cepted 3508 



in Astronomy 1942 



, Discovery by 847 



of Distant gases *3170 



SPECTRUM ANALYSIS of 



Metals *3169 



of Stars 3201 



, Theory of, applied 3402 



, Universal acceptance 



of 3508 



SPECULATION Concerning 



primeval religion 2869 



Confirmed by observa- 

 tion *3171 



, Geological *3172 



, Precarimisness of *3173 



SPEECH, Changes hi 2731 



, A figure of 711 



, Limitations of onomato- 



pcetic *3175 



, Loss of power of 



Aphasia *3174, 3449 



, Marvelous endowment 



of 240 



, Metaphors a necessity 



of scientific 2158 



, Mind develops by 2198 



, Progress transmitted by 1818 



, Purpose underlying ... *3176 



vs. Writing 1816 



SPEED of Current 3523 



.Electricity and, of 



thought 3633 



of Horses increased 



by selection 2052 



, Maximum, reached.. . . 3480 



of Mental action *3179 



of Nerve action *3178 



of Sound 1313 



a Safeguard *3177 



, Spectroscope measures 



of Tortoise measured . . 



of Travel 



. (See also LIGHT; 



VELOCITY.) 



SPENCER Accepts natural 

 selection 



, Formula of, in psychol- 

 ogy 



SPHERE, The crystal An- 

 cient conception of heavens 



, Crystal Fixed stars. . 



, Crystal, still the con- 

 ception of the Middle Ages 



, Each form of greatness 



has its own 1613 



SPHERES, Concentric 3404 



, Music of the 3405 



, Stars supposed set in 



crystal 3405 



SPHEX, Limited intelligence 



of 169 



SPIDER as Aeronaut 96 



of Brazil 369 



Diving 1704 



-, Gossamer, floating in 



air 



, Home of the trap-door. 



, Ingenuity of a 



, Knowledge of mechan- 

 ics among. ...".. 



, Nocturnal instinct of 



the 



876 

 *3180 

 "3181 



1110 



3626 

 3646 



3404 



3678 



923 



1672 



3724 



, Weaving of 



. (See also HUNTING- 



SPIDER; TRAP-DOOR 

 SPIDER; WATER-SPIDER.) 



SPIDER-MONKEY the High- 

 est in the New World 



SPIDERS, Common 



Resembling leaves. . . . 



SPIKES, Marginal, of Venus' 

 fly-trap 



SPINDLE of Egypt in high- 

 lands of Scotland. 



1703 

 782 

 3723 



211 

 2548 

 2771 



3577 

 1644 



SPINDLES, Fly-wheel for, in 



ancient America 3727 



SPINNING Unable to keep 



pace with weaving 1754 



SPINNING JENNY, Invention 



of : 1754 



SPINNING WHEEL, Ancient 



and modern 1644 



SPIRES, Towers, pinnacles 



and, of ice 3447 



SPIRIT of Association 246 



