228 



INDEX 



PAGE 



Circle, ratio accepted by Jews ... 13 



Ratio accepted by Egyptians . . 14 

 Symbol for ratio introduced by 



Euler 14 



Graphical approximations .... 22 

 Circumference of circle, to find, when 



diameter is given 22 



Clock that requires no winding ... 38 



Columbia College seal 140 



Column of De Luc 46 



Compass, watch used as a .... 134 



Congreve, Sir William 53 



Copper, art of hardening not lost . 194 



Cube, duplication of 38 



Crystallization seen by microscope . 108 



Mistaken for palingenesy .... 106 



Dancer microphotographs . . . 144 



Dangerous, fascination of the ... i 



Declaration of Independence ... 145 



De Luc's column 40 



De Morgan Legend of Michael 



Scott 6 



Ignorance v . learning -8 



Illustration of accuracy of modern 



attempts to square the circle . 18 

 "Budget of Paradoxes" ... 6, 18 



Trisection of angle 34. "8 



On powder of sympathy .... 112 



Anecdote of Diderot 118 



DialofAhaz 133 



Diderot, anecdote of 118 



Digby, Sir Kenelm, and palingenesy 109 

 Sir Kenelm and powder of sym- 

 pathy in 



Dircks 56, 7L 75 



Discoveries (great) rarely made by 



accident 179 



Discoveries, valuable, not due to per- 

 petual-motion-mongers .... 36 



Dragon flies don't sting 209 



Duplication of the cube 30 



Dynamite acts in all directions . . 192 



Egg problem interesting .... 173 



Elixir of life 95 



Energy of organic life due to change 206 



Engineering, insect 130 



Euler 14, "8 



Exception proves rule 213 



PACK 



Fallacies in perpetual motion ... 65 



Fallacies, popular notes on ... 177 



Falstaff and the philosopher's stone 97 



Faraday's discovery 93 



Farrants, Prest. Royal Mic. Soc. . . 140 



Figure, a, enlarged by cutting ... 126 



Fire, how first produced 189 



First folio Shakespeare, cost of . . 168 



Fixation of mercury 92 



Flies, small, are not young .... 208 



Follies of Science, The Seven ... J 



D'Israeli's list * 



An inappropriate term $ 



Fourth dimension conception of . 117 



Flatland 120 



Kant and Gauss ........ 121 



Spiritualists 121 



Edward Carpenter on 122 



Possibility of a new sense .... 123 



Foxglove should be folks' glove . . . 222 



Frankenstein, not a monster ... 216 



Frauds in perpetual motion .... 69 



Freezing of mercury 93 



Friction, advantages and disadvan- 

 tages of iB6 



Froment, micrographs 139 



Galileo and the pendulum 180 



Galvani, Madame 180 



Galvanic battery, a misnomer ... 222 



Gases, liquefaction of 93 



Geiser's clock 7* 



Geometrical quadrature impossible . 21 



Gibberish, origin of word 96 



Glass is not hard 215 



Glass, powdered, not a poison ... 211 



Glass slipper, mistake in translation 214 



God, demonstration of existence of . 118 



Gordian knots 203 



Gordius aquaticus 201 



Hair turning to snake 201 



Hairs are not tubes 203 



Hammer made of solid mercury . . 93 



Hand, to look through 156 



Hannibal's use of vinegar 197 



Heat and cold, illusions 150 



Hesse, Landgrave of 77 



Hindoos, ratio accepted by .... 1* 

 Holmes, O. W., and powder of sym- 

 pathy in 



