LIST OF ILLUSTRATIONS. 



PAGE 



Centrifugal Force ... . . . . 93 



Action of Cream Separators . . . . . 96 



Repelling and Attracting Force of Jets . . -99 

 Fallacy of the Bent Crank . . . . .106 



Fallacy of the Automatic Mill . ? . ; . *jpp ? 113 

 To Melt Ice by Squeezing .' . . . .121 



Ice re-frozen on Relaxation of Melting Pressure . .123 

 Ice unmelted in Vessel of Boiling Water . '. . 127 

 Expansion and Contraction of Water with Heat and Cold 1 29 

 Convection Currents in Water . . .' "': .132 

 Bursting force of Water frozen in Confined Space . 135 

 Collapse of Flask under Atmospheric Pressure . .144 

 Water boiled below Boiling Heat under Reduced Pressure 148 

 Vaporisation depending on Dryness of Air : the Hygro- 

 meter . . . . . . . . 149 



Water in Spheroidal State on Red-hot Metal . ; 1^3 

 Principle of the Steam Injector . ' . . 163 



Cooling due to Rapid Vaporisation of Ether . : ' . 1 66 

 Liquid Carbonic Acid frozen by Rapid Vaporisation 



through Sparklet Siphon-head . . *' ;" V 169 

 The Radium Clock : Perpetual Motion . . 181 

 Suction by a Pump really Repulsion by Air . - .' 188 

 Apparent Attraction in General : Theory of Repulsion 192 

 Baryta made red-hot by pouring Cold Water over it . 202 

 Traveller's Food-tin heated by Lime and Water . '*%' 206 

 Device to show Existence of Blind Spot in Every Eye 217 

 Explanation of Blind Spot Experiment . . .218 

 The Brain's Interpretation of the Eyes' Vision . .221 



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