INDEX. 
163 
Page 
Natrolite - 
- 
119 
Needle ore - 
- 
69 
Neocomian fossils - 
- 
146 
Neolithic implements - 
- 
52 
Nephrite - 
- 
117 
Nevill collection - 
- 
53 
Newry granite 
- 
20 
New Red Sandstones 
- 
153 
New Red Sandstone fossils 
- 
145 
Nickel - 
- 
96 
Nickel ores - - 13, 
69, 81 
, 91 
Niedermendig millstones - 
- 
40 
Nitre - 
■ 90, 
108 
Nitre, cubic - 
- 
107 
Non-metallic minerals 
- 
101 
Noumeite - - - 
- 
81 
Northamptonshire ironstone 
- 
76 
Norway rag stone - 
- 
39 
Novaculite 
- 
39 
0. 
Obsidian - 
- 
116 
Occidental turquoise 
- 
119 
Ochre - 
- 7< 
6, 90 
Odontolite - 
- 
119 
Old Red Sandstone 
- 35 
, 152 
Old Red Sandstone fossils - 
- 
143 
Oldhamia - 
- 
141 
Oligocene fossils - 
- 
147 
Oligocene rocks 
- 
154 
Oligoclase 
- 
116 
Olivenite - 
- 
67 
Olivine - 
- 
115 
Onyx ----- 
113 
Onyx marble - 
- 28 
, 110 
Oolites - 
31 
, 154 
Oolitic fossils 
- 
145 
Opal - 
- 14 
, 113 
Ophicalcite 
- 
29 
Orange lead 
- 
98 
Oriental alabaster 
- 
28 
Oriental cat’s-eye 
- 
114 
Oriental ruby 
- 
114 
Ornamental stones 
- 
15 
Orpiment - 
- 
85 
Orthoclase 
- 16 
», 116 
Orthoclase, artificial 
- 
62 
Osmiridium 
- 
84 
Oxland’s process - 
- 
95 
Ozokerite - 
- 
105 
P. 
Page 
Pacos 
- 
83 
Pagodite - 
- 
- 118 
Palaeolithic implements 
- 
52 
Palseoni scus - 
- 
79, 145 
Palaeozoic fossils - 
- 
- 141 
Palaeozoic, rocks - 
- 
- 152 
Palissy’s rustic ware 
- 
- 120 
Paludina 
- 
- 30 
Pandermite 
- 
- 107 
Paragenesis 
- 
86 
Parian cement 
- 
41 
Pattinson’s process 
- 
97 
Pavement, tesselated 
- 
2 
Peacock coal 
- 
- 104 
Peacock ore 
- 
67 
Pearls, artificial - 
- 
- 131 
Peat moss, Lanarkshire, 
geological 
model of 
- 
- 136 
Pebble lenses 
- 
- Ill 
Pencils, lead 
- 
- 103 
Pen-maen-mawr stone - 
- 
22 
Peridot 
- 
- 115 
Permian fossils - 
- 
- 144 
Permian rocks 
- 
- 153 
Peterhead granite 
- 
19 
Petrographical gallery 
- 
- 149 
Petworth marble - 
- 
- 31 
Pewter 
- 
- 57 
Phenakite - - _ 
- 
- 114 
Phlogopite 
- 
44, 117 
Pholas - 
- 
- 25 
Phosphates 
- 43, 
110, 138 
Phosphatic chalk 
- 
- 154 
Phosphor bronze - 
- 
- 59 
Phosphorite 
- 
44, 110 
Phosphorus copper 
- 
- 93 
Photographs, geological 
- 
- 154 
Picrolite - 
- 
- 118 
Pilgrim’s bottles - 
- 
- 121 
Pinxton porcelain - 
- 
- 123 
Pitch lake - 
- 
- 105 
Pitchblende - 
- 
71, 81 
Place’s ware 
- 
- 125 
Plagionite 
- 
82 
Planets, models of 
- 
- 145 
Plaster of Paris 
- 
40, 109 
Platinum 
56, 84 
Plattner’s process - 
- 
- 97 
Playfair, John 
- 
7 
Pleistocene fossils 
- 
- 148 
Pleistocene rocks 
- 
- 154 
Pliocene fossils 
- 
- 148 
Pliocene rocks 
- 
- 154 
