Microscopical Petrography

Index

Authors' names are printed in SMALL CAPITALS, localities in italics and subjects in ordinary type.

Obsidian	31 70
*Ocean, Atlantic*	xix 4 56
Oceanic-series	56
'Odd-uns'	71
Odontoid outgrowths of quartz	19
*Old Meldrum*	30
Oligocene-Miocene	21 22
Oligoclase	12 35 37 46 53 55 59 60 65 66
Olivine	7 8 9 13 14 23 24 30 41 42 43 45
Olivine, dolerite	45
Olivine, hyperite	30
Omphacite	57 58
Oolitic Limestone	17 18 32
Oozes	xix xxiii 4 21
Ophitic	2 16 23 24 45
Orbulinae	xx 3 5
O'REILLY	35
Orientation	39
Orographic	57
Orthoclase	1 11 34 35 36 37 38 42 47 51 53 55 59 65 66
Orthophyric	46