^ KNOVS^LEDGE ♦ 



Correspondence — continued. 

 Ant tngedy, an, ISO 

 App&rent paradux in probabllitiee, 150 

 Arc on lunar diso, 437 

 Arnold, Mr. Matthew, on knowledge, 21h 



Artietic dot-, an. US 



Artistic pen-option of animaU, lt»9 



"Anld Hol)in Qrn.v," t» 



Ballad, a (-uriou», 'Mi-l 



Ball-bearinj;s to bicjcles, 219 



Bicycles, l.Sj 



Bicycles and their defects, 235 



Bicycles, bal -bearings to, 219 



Bicycles, defects of, 315 



Botanical repulsTon and attraction, 263 



Break for tuo-wbeeled vehicle, 97, 1 

 Breathing through the nose, 185 

 Brewing and malting, 422 

 Brilliant meteor. 185 

 British snakes, 49U 

 CALCtJLATION a, 00, 185 



Candle-flame, extinguishing a, 81 



e, alteration i 

 Coincidence, a singula 

 Coincidences. 3Gt 



Cold bath at night, 361, 407, 422, 499 

 Cold snap, 133 ; in May, 28 : " 

 Comet the (illustrated) , 457 

 Cone, seitions of a, 81 

 Consumption. 97 ; and t( 



sUys 2l>7, 299 

 Corset wearing, 393, 438, 





baeco, 28, 79, 117, 162 ; from 



Cycling and raricose veins, 169 



Daoubbbeotypks, tarnished, 219 



Death-warning. 439 



Decimals, multiplication and division of, 



Dog, an artistic. 118 



Doris tuberculata, the spann of, 93 



Double star Castor, the, 150 



Drama for amateurs, 219 



Drinks, hot and cold, 189 



Drunkenness, 2B6: n3e of, 314 



Danman, the late Mr., 24, 79 



Eaith, population of the, 12, 28 



Earth()uakes in the British Isles, 457 



Electricity in dentistry, 472 



English >nabe, an. 361. 422 



Extinguished candle-flame, 81 



Fairy rings, 109, 184. 219, 235, 251 



Ferguson, mechanical paradox of, 26B 



Fever tree. the. 41, 80 



,133 



Figures of Ouid motion, 1 16 

 Figure-training by the corset, 331 

 Finlay Comet, the, 393 

 Fishermen and their superstitions, 364 

 Fish, intelligence in, KIS 

 Flint instruments and pre-historic man, t<0 

 Flint-Jack. 2«7, 976 

 Fluid motion, figures of, 118 

 Full moon, time o^ 236 

 Glass of wine, a, 283 

 nlass >tvlographs, 29, 80 

 Cold in India, 60, 151 



llAtR turning grey, 202; turning white, i:«, 161 

 Hamiltonian system, the, 485 

 Uemia and tnoycling. 202. 252 

 Highland Cell, the, 133, 26i) 

 High tides, »H 



Hot drinks. Ml ■ hot and cold drinks, 235, 232 

 House-flies. t», 499 

 Hunter, Dr.. eiiieriments of, 316 

 llniley, Frofesi'Or. and .Marcus Aurelius, 117 

 ICBNRITHOX wasp, ,180 



Imitations of \idcanic form and action, 117 



Inspirometer, an, 152 

 Instinct and reason, 60 

 Iron pyrites. 422 



-Unds 



Matthew Arnold on, 218 



KNowLEnai:. Mr. 

 LAPlnABlKs. 3il3 

 Lowofprohahilitii 

 Loaf-oopj ing. 4W 

 Leaminu'To sivim. 

 Lifhinln.' ..(f...-l. 



Magnifying power, 29 



Mnirpio, a reasoning, 3ty 



Marcus Aurelius and Prof. Huxley, 117 



Mechanical paradox, 219, 282 



Mental illusion, a singular, 314 



Metachromatism 44 



Meteor, 60, 133. 219 



Mildness of the ^ea coast, 24 



Milkv sea, the, 107 



Mind trouble, H ver}' common, 1 



^lisplaced spa. 81 



Modem surgeon's tools, a, 133 



Monkey and mirror. 314, 380 



», 438 



■1 probabUitit 



kohol on, 43S 



8, new meliod of, 314 



Bainhow, a singular, 202, 282, 361, 422, 49» 



Reason and instinct, 00 



Keduclion of barometrical observations, 43H 



Satukx, rinss of, 314, 471, 485 ' 



School-Eirls. the Hlleen, 80 



School of Telegraphy and Electric Engineering, 331 



Small-pox. Miicaula\ 

 Bpa, misplaced, 12, t 

 Spectacles, SO 

 Spiritualism. St.". 



■ih. .361, 472 

 ,303 





Tarnished dnguern'otypes, 219, 283 



Tea and coUee, 100 



Teasel, use of the, 458 



Telegraph ^'^ Hehring'e Straits, IIS 



Terrestrial magnetism, 110 



Thought-rending, 97 ; thought-rtiling, 132 : s 



169, 219 

 Timbre of trumpet, 12 

 Toads, are they poisonous ? 169, 219, 252 

 Tobacco and consumption, 23, 59, 79, 117, 152 

 Tools of a modern surgeon, 133 

 Tree, the fever, 80 



ANSWERS TO COEEESPONDEHTS. 



BV nn.) ..v,.l.illnn. 409 

 ii' !, . - iiM,,. shadow in water, 13 



A«(roii..miral Soiiety, the, 253 



Atianiie cable, how worked, 100 



Augustine, St.. savings of, 99 



Hall. Dr., luid thi< solar sysloro, 100 



Balloons, lifting power, at seven milea' alti 



lleatrico and Benedick. 4t0 



Heer .drinking, olieorvations on, 221 



Ilic vi'U-, linw kept in a vertical position, 91 



Mi. V, 1.-. riding, remarks on, 82 



llliuvpipe In. ads, chnnge of colour in, 118 



iiarks on, 332 



cp-red from plants, 441 



Cause, remarks on the great flrat, 10 



Centre of earth considered to be solid, 99 



Cetewsyo, observations on, 236 



Chance, theories of, 100 



Cloud bands, 394 



Coil, how to make an electrical, 187 



Cold snaps, meteoric theorj' of, 267 



Colour of the human race, Darwin on, 2:30 



Combustion of chemical substances, 100 



Comet, tail of, as an cle<;trical body, 45 



Comets, their attraction and the earth, 45 



Crickets, how to destroy them, 332 



Croll, Mr., and his geological investigations, 99 



Dakikll cell, a, 316 



Darwin, what he did not teach, 20; his views gene. 



rall^, 439 

 Day, shght alteration of. 13 

 Dejiression of d'stant objects, 2»4 

 Dryden on Chapman's" Busey D'Ambois," 3»4 

 Dynamo, driving, by steam, 8i 

 Earth, the, its movement in respect lo the star 



sphere. 153 

 Eccentricity of cometic orbits, unsound theory of, 99 

 KcUptic, change in the o'diquity ol, 423 

 Egyptian chronologj-, 267 





faster than the wind, 131 



Electricity generated by masses of aqueous i 



Elementary atoms and heat, 101 



Entomology, the study ol, 2.53 



Evolution and M. Pasteur, 153 



Fables, relerences to, 13 



False scientists, 486 



Flint-Jack, 268 



Focus of a lens, how to cslculatc the, 30 



Fog, explanation of, -kl8 



Gas cooking-slovcs, remarks on, 101 



Geraniums and pelargoniums, 208 



, the cultivated varieties, 61 

 lalional art, 99 

 Gravitation and Dr. Siemens, 13 

 Gravity, acting on a buUet in motion, )S4 

 Oreennich time, 220 



tiregorian telescopes, loss of light in, 187 

 Hamiltosiax raeihod of learning I rutin 380 

 liamiltonian translations, 409 

 Headache, cure lor, 2c'.< 

 Heads and tails, calcnialion thereon, 346 

 Hercules, earth approa»-hing to, 99 

 Himalayas, the, and pressure on the earth, 13 

 Huxley, Professor, and the barometer, 30 

 Hydrophobia, alleged self-innoculationby (" 

 IcV.-YAcnrs, how ihev - • • .. - 



Index, how to make Ol 

 Index, observations on, 236 

 Intra-mercuri-l planet, an, 13 

 Insniite, 135 

 Italian, origin of, 29 

 Krw Gardens, 381 

 Khedive, its pronunciation, 17D 

 Knickerbocker, iho word, HI 

 Laplacb on Ihe duration of the earth, 103 

 Legrange and the duration of the universe, -15 

 Lightning, death by, 153 

 Light undulations' travel in enlarging spherm rouni 



the sun, 220 

 Lunar influence on the weather unscientific, 153 

 Li/anls and the Darwinian svsteni, 300 

 Mabs, th- inner sale lile of,'20J 

 Maynuoth battery, the, 134 

 Mental and moral correlation, do trine of, 285 

 Mercury, a September transit of, Ml 

 Weroupv, Greek name of. 45 

 Mens, oliject-glass by, 394 

 Meteors and their courses, 238 

 Meteors, remarkable. 31U 

 Miles Engish. remarks on. 230 

 .Mistakes, how Ihey should be com^ted, 118 

 Mitchell, orbs of Heaven • v. 100 

 Momentum ofa liall, a problem worked out, 29 

 Moon, views and remarks thereon. ti> ; influence of, ci 



l,..,.iies, 100; spparenl dia i.eler of, 134 



De, budget of paradoxes, 423; referenci 



to, 170 



Morning lide-lable, how to make 

 Motions of Ihe earth and resultai 

 National portrsits. n<marks on, 

 Nature mvlhs. aud explanatory I 

 Nebula-, 30 



Newton and the account of the li 

 Numeration, Gng ish system o\ 

 Odd coincidences, 170 

 Osiris, Kgvptian views of. 411 



.2*1 



230 



ic batteries, M 



?=a:;rd::;"?i; 



Porous pels, use of. in i 



Professor Proctor, 153 



Pcjectile, itevialion ofn. 15 



Pvrain'd. remarks on pa.-uMge liierrinforastmnomirsl 



obserr.tion.l3t 

 KKARsleerinii Iriycles. 268 



Science at the Koval Academy, 45 

 Sheet lightning distinct from lorked lighlninc, 1 

 Shell, tound heatd in a. and Professor Tyndall, 

 ; of the days, IW 



