LIST OF PLATES
Reading edition
PLATE Facing page
I. (A) MODEL OF BISMUTH CRYSTAL. (B) THE SHAKING SAND BOX 16
II. SHIMIZU-WILSON HAY TRACK APPARATUS 26
III. ALPHA RAY TRACKS 30
IV. (A) BAR MAGNETS ON SPIRAL SPRINGS. (B) MODELS OF ATOMS WITH ELECTRONS 34
V. (A) FLOATING MAGNETS. (B) CRYSTALS IN TUBE CONTAINING EMANATION 42
VI. (A) TUNING FORK OVER JAR. (B) FOG APPARATUS 60
VII. CIGARETTE SMOKE 66
VIII. EXPERIMENT SHOWING THE PRESSURE OF THE ATMOSPHERE 72
IX. CAVITATION CAUSING EROSION OF PROPELLER BLADES 98
X. (A) LARGE DROP OF ORTHOTOLUIDINE. (B) ONE SOAP BUBBLE INSIDE ANOTHER 104
XI. (A) CIRCLES CLEARED BY MINUTE DROPS OF OIL. (B) THE CAMPHOR BOAT 112
XII. (A) STORMY WATER, (B) OIL STILLING THE STORM, (C) GRAPE IN SODA WATER 118
XIII. CRYSTALLINE FORMS 134
XIV. (A) DIAMOND MODEL, (B) PLANE LATTICE IN THE DESIGN OF A WALL-PAPER 148
XV. THE CULLINAN DIAMOND 156
XVI. (A) LAYERS OF THE GRAPHITE CRYSTAL. (B) POSSIBLE FORMS OF THE BENZENE RING 160
XVII. SNOW CRYSTALS OF VARIOUS FORMS 172
XVIII. MORE SNOW CRYSTALS 174
XIX. A HALO AND MOCK SUNS 176
XX. (A) GLACIER ICE. (B) MODELS OF ICE STRUCTURE 188
XXI. (A) MODEL OF PENTANE, (B) X-RAY SPECTRUM OF A HYDROCARBON. (C) MODEL OF ROCK SALT 206
XXII. TWO PHOTOGRAPHS OF ALUMINIUM 216
XXIII. CRYSTAL GRAINS IN A SAMPLE OF STEEL 218
XXIV. ILLUSTRATING “CLOSE PACKING” 220
XXV. (A) CUBIC PACKING, (B) HEXAGONAL PACKING 222
XXVI. THE YIELDING OF ALUMINIUM UNDER STRAIN 230
XXVII. DAMASCUS BLADES 236
XXVIII. CEMENTITE CRYSTALS 238
XXIX. (A) CEMENTITE CRYSTALS BEING BROKEN UP AND ROUNDED OFF. (B) A NEEDLE SCRATCH IN A POLISHED PIECE OF SPECULUM METAL 240
XXX. EFFECT ON SPECULUM METAL OF RUBBING (WITH FINE EMERY) AND POLISHING (WITH ROUGED LEATHER) 242
XXXI. A CONTINUATION OF PLATE XXX 244
XXXII. EXPERIMENT SHOWING EFFECT OF TEMPERATURE ON ELECTRICAL RESISTANCE 246