PLATES. 



PAGE 



Mouvement Brownien (Fig. 2) ... ... ... ... ... 65 



Turbines (Figs. 1, 2, :)) 96, 97, 98 



New Method of Chemical Analysis (Figs. 1-7) ... ... 145 



Photographs by Infra-red Rays on Ultra-violet Light (Figs. 



1-7) ' ... 1H2, 183, 186, 188, 189 



Pressure of a Blow (Figs. 4-6, 8, 9) 284, 285, 289 



Eclipse Expedition (Figs. 2, 3, 4) 356, 357, 359 



Origin of Radium (Figs. 1, 5, 7, 8) 400, 406, 407, 408 



Electricity Supply (Figs. 3, 4, 6, 7, 10) ... 438, 441, 444 



High Frequency Currents (Figs. 2, 3, 5, 8, 9, 16) 



495, 496, 498, 499, 510 



Positive Rays (Figs. 2-5) 596, 597 



Steel Metallurgy (Figs. 2-5, 5a, 8 and 8a, 9) 604, 605 



Gyrostats (Figs. 1-19) 632-639 



Particles ejected from Atoms (Figs. 2-13) ... 672, 674, 675, 676 



Crystallography (Figs. 1, 2, 4, 8, 15-17, 20) ... 678, 682, 692, 693 



Spectroscope in Chemistry (Figs. 1-3, 5) ... 704, 705, 712 



Polarized Light (Figs. 2-4) 730, 731, 732 



