INDEX. 



PAGE 



Abraxas grossulariata 108 



Acari 103 



Acid manures — effect on fungal 



growth 70 



Acid soil 11 



Acidia heraclei 115 



Aecidiospores on barberr}^ 92 



Agriolimax agrestis 102 



Aieurodida3 127 



x\merican Blight 124 



American felt-paper discs for 



Cabbage Root Fly 117 



American gooseberry mildew ... 88 



Anisopteryx aescularia '. 109 



Annuals 2 



Antennae 107 



Aphides 121 



insect enemies of 132 



Aphides, spraying methods 



against 122 



Aijhis brassicae 122, 123 



fifchii 122, 123 



2Jomi 122, 123 



pruni 122, 123 



rapae 122, 123 



rumicis 122, 123 



sorbi 122, 123 



Apple Aphides 122, 123, 124, 125 



Apple, insect enemies of 108, 109 



122, 124, 126, 127 



Apple, self sterile varieties 38 



Apple sucker 126 



Avion ater 102 



Arsenate of lead ... 108, 109, 110, 111 



Arsenate paste 108 



Artificial selection 44 



Ascent of sap 8 



xysters — wilt or Black-Leg disease... 81 

 Australia, wheat rusts in 93 



Bacillus solanacearum 84 



Bacteria, nitrifying 12 



Bacteriosis of tomato 84 



Bacterised peat 13 



Banks, Sir Joseph 90 



Barberry, aecidiospores on 92 



Barberry and wheat rust 92 



Bary de 92 



Bean Aphis ....122 



PAGE 



Bee Hive 133-4 



Diseases of 134 



Beetles 112, 131, 132 



Begonia 32 



Beneficial animals 129 et seq. 



Biennials 2 



Birds in relation to other animals 



98, 99, 112, 114, 117, 129 



Black Currant Gall Mite 103 



Black currants, insect enemies of 



103, 123 



"Black-Leg " of Asters 81, 83 



Black Scab of potatoes 70 



Black Slug 102 



Black Striped Slug 102 



Black stripe of tomatoes 84 



Blackbird 98, 103 



Breeding of pLints 10 



Blister rust of pine 93 



Blood-sucking Flies 113 



Blue Tit 98 



Biffen, Prof., and disease resis- 

 tance 93 



''Big bud" ; 103 



Bone Meal 14 



Books dealing with Economic 



Zoology 135 



Bordeaux mixture as a Fungi- 

 cide 78, 84 



Bottomley, Professor 13 



Bracket fungi 61 



Breathing of plants 7 



of roots 7 



of germinating seeds ... 43 



pores of shoots 7 



Brown Scale 127 



Bud variation 26 



Budding 32 



Bulb 28 



Bulb, ripening of 28 



Bulbs, insects attacking 119 



Bulbil 29 



Burning sulphur as a disinfectant 86 



Burning of refuse 69. 80 



Butterflies 107 



Cabbage Aphis 122 



Cabbage Butterflies 107 



Cabbages and cauliflowers " Club 

 Root" 65 



