CONTENTS. XV 



C. Conclusion. 



We Rest our Case Here, 209. The Maxim of Chee, 

 210. Is Our Demonstration General? 211. The Work 

 of Four Generations of Chemists, 212. The Probability 

 of our Conclusion, 212. Why we did not " Select " 

 the Elements, 214. Find a Needle in that Haystack, 215. 

 The Base of that Haystack, 216. Why our Demonstra- 

 tion Applies to All Elements, 217. The Atomic Num- 

 ber, 217. The Honorable Secretary of Berlin, 218. 



PART FOURTH. 



TABULAR VIEW OF THE ATOMIC WEIGHT 

 ANALYSES OF THE NINETEENTH CENTURY. 



Introduction and Explanations, 219. SILVER, MAU- 

 MENE, 221. ALUMINUM, 225. ARSENIC, EDGAR F. 

 SMITH, 226. Hibbs' Direct Weighings, 227. Lost in the 

 Wilderness of Error, 228. No Reduction to Vacuuum, 

 229. Kessler, frei nach Heine, 231. GOLD, 232. Clarke 

 Condemns his Own Work, 234. BARIUM, 235. BERYL- 

 LIUM, 237. BISMUTH, SCHNEIDER, 237. BORON, RAMSAY, 

 238. BROMINE, MARIGNAC, 238. CARBON, DUMAS, 239. 

 CALCIUM, 239. CADMIUM, v. HAUER, 239. CERIUM, 

 240. CHLORINE, TURNER, 240. COBALT, CHROMIUM, 

 Cesium, 241. COPPER, 242, IRON, SVANBERG, 242. 

 FLUORINE, LOUYET, 242. 



HYDROGEN, 243-257. LORD RAYLEIGH, 244. MOR- 

 LEY'S : Determinations, 244; show of Precision, 245; 

 Weighings of Oxygen, 246; of Hydrogen, 248; Ratio 

 O : 16, 252; O : H, 253; Hopeful Progress, 256. 



STATE SCIENCE AND STATE CHURCH, 257. 



MERCURY, ERDMANN, 257. IODINE, MARIGNAC, 258. 

 IRIDIUM, 258. Potassium, Lanthanium, Lithium, 259. 

 MAGNESIUM, SCHEERER, 260. Manganese, Molyb- 

 denum, 260. NITROGEN, LORD RAYLEIGH, 260. SO- 

 DIUM, MRS. ASTON, 261. Nickel, Oxygen, Osmium, 

 262. PHOSPHORUS, SCHROETTER, 262. LEAD, BER- 



