C XXviii PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



—halictrum Chelidonii, xlix 

 —huja gigantea, seed, 160 



obacco wildfire, 163 

 tomato, foot-rot, 163 

 growing, 163 

 root-knot disease, 31 

 seeds, their longevity, 160 

 their utilization, 163 

 Tomatos, effect of kainit upon, 32, 

 33, 40 

 mercuric bichloride 

 upon, 40, 48, 49 

 their fertility, 163 

 Town refuse as manure, xlvi 

 Tree growth, factors in, 148 

 Trigonella coerulea, its odour, li 

 Tropaeolum doubling, li 



fasciation, liii 

 Tulip, colour of base, change in, xlix 

 Turnip, autumn-sown, 18 



longevity of seeds, 160 

 Tylenchus devastatrix in narcissi, 68 

 susceptible crops, 71 



Urtica dioica, spiral torsion in, 1 

 Ustulina zonata, 158 



Valeriana officinalis showing spiral 



torsion, 1 

 Vanda luzonica, 163 

 teres, lxxx 



Vegetable Marrows at Wisley, 114, lxi 



fasciation in, 1 

 Vegetables, how to secure three suc- 

 cessive crops a year, 13 

 meeting for, xxx 

 summer sowing, 16, 17 

 their food values, 21 



supposed deterioration, 

 163 



Vegetation, damage by smoke, etc., 169 



Verbascum Blattaria, li 



Viburnum prunifolium, host of vine 

 aphis, 147 



Vine aphis, 147 



winter injury, 147 



Violet, ' Cyclops,' lxxvi 



' John Raddenbury,' lxxvi 

 ' Mrs. David Lloyd George,' 

 A.M., lxxvi 



Webster, A. D., " Seaside Planting," 

 129 



Weed seeds, fate of buried, 164 

 Wheat-ear in heaths, liii 

 Wisley, contributions from the Labora- 

 tory, 68, 72, 74 



presentations to, 191 8, 126 



trials at, 95 



Yield, effect of " place " upon, 72, 73 

 Yucca Ellacombei, A M., lxxi 



Tiiiued by Spottiswoode, BALLANTYNB & Co. Ltd, 

 Colchester, London <S* Eton, England 



