INDEX 



PAGE 



Absurdities in perpetual motion . . 42 

 Accuracy of modern methods of 



squaring the circle 17 



Adams, perpetual motion 71 



Age, when a man becomes of ... 212 



Ahaz, dial of 133 



Air, liquid 65 



Alchemical names 221 



Alkahest, or universal solvent . . . 104 



Altar of Apollo 30 



Angelo, Michael, finely engraved 



seal 136 



Angle, trisection of 33 



Apollo, altar of 30 



Approximations to ratio of diameter 



to circumference of circle ... 17 



De Morgan's illustration of ... 18 



New illustration of 19 



Archimedean screw 49 



Archimedes, area of circle 13 



Ratio of circumference to diameter 14 



Archimedes and his fulcrum .... 171 



Arithmetic of the ancients .... 15 



Arithmetical problems 163 



Chess-board problem 163 



Nail problem 164 



A question of population .... 165 



How to become a millionaire. . . 166 



Cost of first folio Shakespeare . . 168 



Arithmetical puzzles 170 



Archimedes and his fulcrum ... 171 



Army Medical Museum 142 



Artichoke, Jerusalem 223 



Ball, Prof. W. W. R. . . 39, 129, 133, 134 



Balloons for conveying letters . . . 147 

 Balls proportion of weight to 



diameter 32 



Bastard editions of Scott 199 



Bean jumping 128 



Bee, king 178 



Bees bred in decaying carcass . . . 207 



PAGE 



Bells kept ringing for eight years . 41 



Bible in walnut shell 136 



Bible, written at rate of 22 to square 



inch 141 



Black, Professor Joseph 184 



Black lead a misnomer 221 



Blind worm not blind 221 



Boat-race without oars 129 



Bodies, our, made of materials of old 



organisms 205 



Bolognian phosphorus 102 



Boots lifting oneself by straps of 128 



Boyle and palingenesy 107 



Bramwell, Sir Frederick 38 



Brandt discovered phosphorus . 101, 180 



Brick, to look through 151 



Browne, Sir Thomas 179 



Buckle and geometrical lines ... 119 

 "Budget of Paradoxes," De Morgan 



6, 18, 118 



Camel's hair brushes 322 



Capillary attraction 53 



Carbon bisulphide for perpetual mo- 

 tion 67 



Carborundum as an abrasive ... 215 

 Carpenter, Edward fourth dimen- 

 sion 122 



Catgut, not from cats 222 



Catherine II 118 



Centuries, mistakes in naming ... 212 



" Century of Inventions " 74 



Chess-board problem 163 



Child lifting two horses 131 



Perpetual motion by a 64 



Cinderella's slipper not glass ... 214 



Circle, squaring the 9 



Supposed reward for squaring the 9 

 Resolution of Royal Academy of 



Sciences on 10 



What the problem is 12 



Approximation to, by Archimedes 14 



227 



