XVI CONTENTS. 



ZELIUS, 263. PALLADIUM, 263. PLATINUM, SEUBERT, 

 264. Rubidium, Rhodium, Ruthenium, 264. SULPHUR, 

 MARCHAND, 264. ANTIMONY, SCHNEIDER, 265 Edgar 

 F. Smith, 266. SELENIUM, PETTERSSON, 267. SILICON, 

 THORPE, 267. TIN, 267. Strontium, 268. TELLURIUM, 

 269. TITANIUM, H. ROSE, 270. THALLIUM, CROOKES, 

 271. URANIUM, EBELMEN, 271. VANADIUM, ROSCOE, 

 273. WOLFRAM, SCHNEIDER, 273. ZINC, AXEL ERD- 

 MANN, 276. ZIRCONIUM, 278. 



ADDENDA TO PART SECOND. 



I. Reduction to Air (ad. pp. 64-65), 278-281. 

 II. How Crookes Manufactured Decimals (ad. p. 129), 

 281-284. 



CONCLUDING REMARKS. 



I. The Degree of Certainty Attained, 285. 

 II. That Stellar Haystack, 288. 



III. Table of Atomic Numbers, 290. 



IV. Atom Mechanics, Published and Prospective, 291. 

 Epilogue, 292. 



SUPPLEMENTS. 



The Twelve Masters, vm, ix. 

 The Fifteen Chemists, 296-297. 

 Honor List of Chemists, 298-300. 

 Index of Names, 301-303. 

 The Mechanism of the Aurora, 304. 



ILLUSTRATIONS. 



PORTRAIT OF BERZELIUS, Frontispiece. 



Plate I. Facing p. 24. 



Plate II. Facing p. 176. 



Plate III. Facing p. 192. 



ERRATA. 



No serious errata, requiring special mention, are believed 

 to be present. 



