820 



SCIENTIFIC SIDE-LIGHTS 



LIFE, Transitoriness of 1918 



, Transitoriness of hu- 

 man 203 



, Ultimate facts of *1919 



in Unexpected places... *1896 



, Universal diffusion of . . *1920 



, Uproar of, in tropics. . . 3668 



, Variety of 41 



, Vegetable, lacking in 



ocean depths *1922 



1 Ventilation is 3635 



Viewed as continuous. . *1923 



, Volition essential to. . . 3675 



, Volition may secure 



more of 1036 



of Wandering germs ... *1904 



, Wanton destruction of. *1924 



a Warfare *1875 



1 Waste of 3694 



without Water 59 



, Wonders of, destroyed . 796 



, Wonders of , revealed. ... 3758 



, Zone of, dead-line over- 

 hangs 71 



. (See also EXISTENCE.) 



LIFE-FORCE, Waste of 675 



LIFELESSNESS Presumes 



correct manipulation 1893 



.Supposed, in ocean 



depths 2448 



LIFE-WORK, Adaptation to. 63 

 , Early impressions de- 

 termine 2368 



LIFTING of Heavy stones 



by primitive man *1926 



LIGHT, Aberration of 1 



.Advantage of dimin- 

 ished, of stars 91 



, Advantages of electric.. *1934 



, Ambiguity of the word. 152 



, Analogies of sound and. 3106 



, Artificial. *1929 



, Beam of, in darkness . . 315 



, Beauty revealed by 



subdued 340 



.Black bodies emit 



most intense, 1611 



, Color of 670 



, Comet's, from glowing 



gas 3027 



, Complexity of 971 



, Composite. 3334 



, Connected with Motion 



and life 1305 



, Contrast of reflected 



and transmitted 638 



Convertible 611 



and Dark determined 



by contrast 2544 



, Darkening shadow in- 

 creases 824 



, Darkness produced by 



adding to 3106 



of the Deep 2445 



, Depolarization of *1932 



, Dimensions of waves of 2216 



, Directness of rays of. . . 838 



, Discovery of velocity of 2706 



, Discovery of waves of . 79 



, Dispute over nature of . 292 



, Double reflection of, 



from films *1933 



, Double refraction of . . . 2853 



in Eclipse 961 



, Electric, scarcely af- 

 fects germs *1935 



, Emission theory of . . 731 , 1062 



Essential to growth of 



plants *1936 



, Eternal, mountains of. 2277 



, Eye tells only of 2408 



, Fitful and intermittent 2500 



from Flint and steel . . . 1235 



Formerly believed to 



pass instantly through 



space 1068 



, Germ of undulatory 



theory of 1395 



Imponderable 2116 



, Incessant record of the 



sun by its own 89 



as an Indicator of mo- 

 tion 1118 



LIGHT. Instructions about, to 



the blind 3363 



, Judgment of, and shade 2541 



Known to ancients .... *1931 



, Law of absorption of . . 1939 



Liberates atoms from 



vapor 540 



, Mariners perplexed by 



mysterious 2086 



May vary more than 



heat for plants 1462 



, Mental force like 2099 



not a Mere sensation. . . *1927 



, Motion of *1947 



, Myriad centers of 3214 



a Necessity of life 3305 



in Ocean depths *1937-38 



, Particles of 251 1 



Passes unchanged in 



quality through space .... *1942 



, Pathways for Trans- 

 parency 2521 



, Penetration of, through 



water 2534 



, Perception of, in paint- 

 ing, illusive 2541 



.Perfection sheds, on 



imperfection 2554 



of Phosphorescence in 



the Banda seas *1940 



of Planets not their 



own 1383 



, Polarization of 2643 



, Porpoises swimming in 



paths of 2588 



, Power of 1540 



on Questions of ve- 

 racity ... 2608 



, Rectilineal propagation 



of 2763 



, Reflection of 634 



, Reflection of, only par- 

 tial 2660 



, Refraction of 1125, 2855 



a Result of correlation.. *1928 



, Rose seen by, reflected 



through its substance 



, Scientific 



, Sensitiveness of plants 



to 



Separates atoms from 



gas 



Sifted by natural ob- 

 jects ' *1943 



a Sign of unity *1930 



, Source of, in eclipse. ... 961 



, Sources of terrestrial. . . *1944 



, Sparrows utilize elec- 

 tric 40 



, Speed of 1589 



, Star - fish coruscating 



with 3213 



of Stars 1599 



, Stars without 3223 



, a Sufficient depth of 



water absorbs all 3478 



of Sun has healthful 



influence *1941 



.Time for, to come 



from stars 877 



, Transmission of 1180 



Transports us into life . 1891 



Traversing pure water. *1945 



.Tubes, ancient, ex- 

 cluded diffused 257 



, Undulatory theory of . 



1528,3391 



, Unnatural, in eclipse . . *1946 



, Velocity of Bacon . . . 3631 



, Velocity of Basis of 



calculation 2547 



, Velocity of Jupiter's 



satellites 1127 



.Velocity of Newcomb 3630 



, Waves of heat like 



waves of 2715 



.Waves of 3716 



, Waves of, abolish each 



other *1947 



, Waves of, flow around 



obstacles 2441 



, f rom Wavesof sound 



to waves of 1160 



538 

 1663 



3080 

 384 



LIGHT, What the ancients 



................ 



Where sun's rays never 



&.i ............ .... 



, White, may come from 



'1948 

 634 



black object 



.Wonderfully varied, of 



colored gems 



. (See also MOONLIGHT; 



SUNLIGHT: WAVES.) 



LIGHTHOUSE a Beacon of 

 death 



, Birds dashing them- 

 selves against 



, Fascination of, to birds 



of the Mediterranean . . 



LIGHTING, Gas and electric . 



, Methods of 



LIGHT-INTENSITIES Meas- 

 urable 



LIGHTNESS of Bicycle 



of Snow 



LIGHTNING Destroys mast 

 on capitol 



, Effect of, stroke of .... 



, Freaks of Darwin's 



observation of 



, Passage of 



, Phenomena of Joseph 



Henry investigates 



Subject to man 



, Suddenness of flash of. . 



about Volcano a Hy- 

 dro-electric machine 



Volcanic eruption at- 

 tended by 



LIGHTS, Comets are moving 

 electric 



on Sides of deep-sea 



fish 1249, 2876 



LIGHT- WAVES, Conflicting, 

 produce darkness 



, Dimensions of Incon- 

 ceivable minuteness 



, Interference of, illus- 

 trated 



, Interference of New- 

 ton's rings 



, Interference of Thin 



films 



-, Number of 



, Particles smaller than. . 



, Phenomena of interfer- 

 ence of 



LIKENESS of all Races 



of Animal and plant.. . . 



, Anthropomorphism is, 



of soul 



of Embryos 



of Lower animals to man 



of Man to lower ani- 

 mals .- 



of Man to lower organ- 

 isms 



Only in an order of 



thought 



LILY Contrasted with cactus 



Would thrive in 



" Black Hole of Calcutta" . 



LIMBS, Remnants of lost 



LIME, Chloride of 



, Heat stored in 



is Oxide of calcium 



LIMESTONE Built by micro- 

 scopic organisms 2745 



in Earth's crust 1614 



, Hills of, once under sea *1955 



LIMIT, Absolute, of phren- 

 ology 



of Development in new 



world 



of Human powers 



of Human observation . 



of Human thought. . . . 



, Individual experience 



not the 



of "Perpetual snow"... *1957 



of Power of Microscope. 



*1959, 2510 



of Sensitiveness in re- 

 tina *1958 



of Strength of fer- 

 mented liquors. 131 



2918 



1208 



978 

 370 



*1949 

 1235 



*1950 



1120 

 3181 

 3709 



2713 

 610 



25 

 3367 



*1951 

 571 

 1845 



989 

 996 

 556 



1528 



2216 



549 



2415 



544 



670 

 2510 



3505 



3534 



*1953 



184 



*1952 



162 



2481 

 2076 



672 

 3707 



3465 

 *1954 



3588 

 612 

 612 



2596 



211 



*1956 



1956 



1971 



1508 



