VI TABLE OF CONTKNTS. 



PAGE. 



45. Manganese 282 



46. Iron 287 



47. Nickel and Cobalt 291 



48. Ruthenium 311 



49. Rhodium 313 



50. Palladium 315 



51. Osmium 322 



52. Iridium 325 



53. Platinum 327 



54. Cerium . 335 



55. Lanthanum — 344 



56. The Didyraiums 351 



57. Scandium 354 



58. Yttrium 355 



59. Samarium, Gadolinium, Erbium, and Ytterbium 359 



60. Terbium, Thuliimi, Holmium, Dysprosium, etc 362 



61. Argon and Helivmi 363 



Table of Atomic Weights 364 



Index 367 



