fertilisation, 79

Selenipedium, 92, 104

Shading, 21

Shading of houses containing seedlings, 78

Slugs and woodlice, 50

Sobralia, 104

Sophronitis, 104

Spathoglottis, 105

Spraying the plants, 37, 72

Staging for the plants, 12

Staking or fixing plants, 28

Stanhopea, 105

Stauropsis, 105

Stelis, 105

Stenoglottis, 105

Structure of the flowers, 6, 67

Structure of Orchid house, 9

Syringing, the need for, 37

Tanks for storing water, 9

Tar, injurious effects of, 51

Tetramicra, 105

Temperatures, 17-20

Terrestrial species, packing of, 62

Thrips, destructiveness of, 48

Thunia, 105

Treatment of imported plants, 63

Trichocentrum, 105

Trichopilia, 105

Trichosma, 106

Trigonidium, 106

Useless leaves and pseudo-bulbs, removal of, 31

Vanda, 106

Vanda Batemanii, 105

Ventilation, 9

Warscewiczella, 108

Watering epiphytal species, 35

Watering terrestrial species, 38

Wire injurious to the plants, 29

Zygopetalum, 107

Zygopetalum, sections of, 108

THE END

Printed by BALLANTYNE, HANSON & CO.

Edinburgh & London

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