Author's Preface to the Sixth Russian Edition

	2nd Series, Typical elements	4th Series	6th Series	8th Series	10th Series	12th Series
I.		Li 7	K 89	Rb 86	Cs 133	—	—
		vol. i. 574	vol. i. 558	vol. i. 576	vol. i. 576
II.		Be 9	Ca 40	Sr 88	Ba 137	—	—
		vol. i. 618	vol. i. 590	vol. i. 614	vol. i. 614
III.		B 11	Sc 44	Y 89	La 138	Yb 173	—
		vol. ii. 60	vol. ii. 94	vol. ii. 93	vol. ii. 93	vol. ii. 93
IV.		C 12	Ti 48	Zr 91	Ce 140	? 178	Th 232
		vol. i. 338	vol. ii. 144	vol. ii. 146	vol. ii. 93		vol. ii. 148
V.		N 14	V 51	Nb 94	?Di 142	Ta 183	—
		vol. i. 223	vol. ii. 194	vol. ii. 197	vol. ii. 93	vol. ii. 197
VI.		O 16	Cr 52	Mo 96	—	W 184	U 239
		vol. i. 155	vol. ii. 276	vol. ii. 290		vol. ii. 290	vol. ii. 297
VII.		F 19	Mn 55	? 99	—	—	—
		vol. i. 489	vol. ii. 303
			Fe 56	Ru 102	—	Os 192
			vol. ii. 317	vol. ii. 369		vol. ii. 369
VIII.			Co 59	Rh 103	—	Ir 193
			vol. ii. 353	vol. ii. 369		vol. ii. 369
			Ni 59·5	Pd 106	—	Pt 196
			vol. ii. 353	vol. ii. 369		vol. ii. 369

		3rd Series	5th Series	7th Series	9th Series	11th Series
I.	H 1	Na 23	Cu 64	Ag 108	—	Au 197
	vol. i. 129	vol. i. 533	vol. ii. 398	vol. ii. 415		vol. ii. 442
II.		Mg 24	Zn 65	Cd 112	—	Hg 200
		vol. i. 590	vol. ii. 39	vol. ii. 47		vol. ii. 48
III.		Al 27	Ga 70	In 114	—	Tl 204