Odours, Theories of, 98
Chemical, 116, 132
Undulatory theory of, 42, 116, 120
Criticism of, 129
Varieties of, 100
Ogle, 116
Olfaction. See also Smell.
Altusions to, in literature, 51 et seq.
and digestion, 136
a primitive sense, 21
Evolution of, 21
in fish, 33
in insects, 25
in the lower animals, 21
in the sex-life, 85
Theories of, 98 et seq.
and ventilation, 17, 109
Olfactory cells, 23
hairs, 23, 121
memory, 43
organ, 23
of insects, 28
pictures, 140 et seq.
pigment, 24, 116, 125
region of nose, 114
Onions, effect of, 94 f.n.
Orientation. See Homing Instinct.
Paracelsus, 70
Paris, Smell of, 151
Parker, G. H,, 100, 104, 108
Pawlow, 136
Peppermint, 71
Perfumes, Classification of, 103
New varieties of, 107
Sources of, 105
Pigment, Olfactory, 24, 125
Pinewood, Odour of burning, 143.
Plague, Sweet smell of, 84
Poncelet, P. P., 59
Queen Elizabeth, 3
Reality, Objective, 137
Religion, Smell in, 72
Remedies, Nauseous, 70
Olfactory, 66
Rheumatism, Acute, Acid smell of, 83
Ribot and Olfactory memory, 48, 50
Rimmel, Classification of odours, 103
Roberts, Lord, and cats, 92
Rohmer, Sax, 74
Rose perfume, 57, 105
and exhaustion, 16
Roses, Attar of, 105
Rousseau, 100, 141
Sacrifice, Savour of, 72
Saints, Odour of the, 74
Saintsbury, George, 103
Salerno, Teaching of, on garlic, 47
Salmon's Dispensatory, Fumigation in, 68
Sandal-wood, 113
Scatol 16, 70
Scott, Sir Walter, 67
Sea, Smell of, 144
Sea-anemone, Olfactory cells of, 24
