January 14, 1892. ] 
JOURNAL OF HORTICULTURE AND COTTAGE GARDENER. 
27 
buried or washed away. No objestion can be made to fermented 
manure, provided it is not used in excessive quantities, when the 
plants are made gross by its use. There is danger in that, there¬ 
fore some have recourse to a' tificials, and Potatoes require potash, 
nitrogen, and phospiates, but the Potato fungus runs riot in 
crops having too much of the first two. and the Jand is found to 
be grea ly benefited by d essing with sulpha'es of magnesia, 
sodium, and i on. The magnesia and soda sul^ih tes are present 
in kainit, and mineral superp hosphates are considered prefer¬ 
able. Sulohites certainly act inimicilly on fungi ; in fa t, they 
cannot contend with sulphur active within the host plant, not 
even sulphate o"' ammonia, and sodium sulpha'e strengthens the 
haulm against the fungus; whilst iron sulphate purges the soil 
and plants, so as ro render the fungus in no wise dangerous. 
Mineral superphosphites, 2 cwt.; kainit, 1 cwt.; nitrate of soda, 
1 cwt ; iron sulphate i cwt. mixed per acre, is recommended by 
Dr. Griffiths specially for Potatoes, stating (“ Manures and 
Their I ses,” pa e 150) that By using iron sulphate there is 
litt'e dinger of the crops being attacked by Peronosp ra (Phy- 
tophthora) infestans.” Others recommend superpbosphite, 
3 cwt.; sulphate of ammonia, 1 cwt. ; kainit, 2 cwt. mixed per 
acre ; whilst some others use superphosphate, 3 cwt. ; sulpha e 
of ammonia, 1 cwt.; kainit, 1 cwt. ; and sulphate of sodium, 
1 cwt. mixed per acre. These are sound dressings, available for dis 
tributing at the time of “ setting,” and in some r..-8pects efficent 
in securing the Potato crop a/ninst the scourge. 
But the cultivation of the Potato renders it an easy prey to 
fungus—all cultivated plants are more liable to attack by fungi 
than wild plants and prevention is the thing to aim at. The 
essential conditions have been briefly glanced at, and they must 
be observed—that is, the soil must be well drained, it must be 
well worked, aerated, sweetened; the plants have a free ch-culation 
of air, thus promoting evaporation so as to insure the thorough 
solidification of its growths and prevent that accumuhtion of 
moisture, warmth, and confined air about the plants so inimical 
to the Potito, but fostering to the Potato fungus spores, and so 
provocative of their germination, and promotion of the exuberant 
growth of the fungus. 
Then the tuber sets must be sound, rejecting any that show 
a trace of disease, and so far as practicable planted whole. Cut 
Potatoes should be tubbed in quicklime to s ar or coat over the 
cuts, and eve y possible precaution taken against infection. 
Despite all efforts the Potito disease will come as certainly as 
the seasons, but it alwa,ys falls with less severity where the 
ground is thoroughly worked and means are adopted to prevent 
the spread of the disease. Disease-resis ing varieties should be 
encouraged, for some are much hardier than others, and it is 
always the weaklings-those having the least stamina and the 
most tender skins—that by non resistance fall before the Potato 
fungus—G. Abbey. 
(To be continued). 
THE ROYAL HORTICULTURAL SOCIETY. 
The Committees. 
The chief arrangements of the above named Society for 1892 have 
already been announced. They are now issued in a scbedule of 116 pages, 
which gives a variety of information with respect to the Society’s work, 
a list of the Fellows, the affiliated Societies, and the members of the 
several Committees. The names of the latter are as follows:— 
Scientific Committee. 
Chairman .—Sir Joseph Dalton Hooker, K.C.S.I., M.D., C.B,, F.R.S., 
The Camp, Sunningdale. 
Vice-Chairmen. —Dyer, T. Thistleton, C.M.G., F.R.S., Royal 
Gardens, Kew ; Foster, Professor M., Sec. R.S., Great Shelford, Cam¬ 
bridge; Masters, Maxwell T., M.D., F.R.S., V.P.L.S., Mount Avenue, 
Ealing, W. 
non. Secretary. —Rev. Professor G. Henslow, M.A., F.L.S., F.G.S., 
Drayton Hou.se, Ealing, W. 
Baker, J. G., F.R.S., Royal Gardens, Kew. 
Blandford, W. H. F., M.A., F.E.S., 48, Wimpole Street, W. 
Bonavia, Dr. E., 5, Harrington Mansions, South Kensington. 
Burbidge, F. W., F.L.S., Trinity College Gardens, Dublin. 
Church, Professor A. H., F.R S., Bhelsley, Richmond. 
Clarke,'Colonel R. Trevor, Welton Place, Daventrv. 
Darwin, Francis, F.R.S., Wychfield, Huntingdon Road, Cambridge. 
Dod, Rev. C. Wolley, Eige Hall, Malpas, Cheshire. 
Blwes, H. J., F.L.S., F.Z S., Colesborne, Andoversford, Gloucestershire. 
Frankland, E., F.R.S , The Yews, Reigate Hill, Reigate. 
Gardiner, W., F.R,S., Clare College, Cambridge. 
Gilbert, J. H.. Ph.D., F.RS., Harpenden, Herts. 
Godman, F. DuCane, F.R.S , 10, Chandos Street, Cavendish Square, W. 
Green, Professor J. R., M.A., 17. Bloomsbury Square, W.C. 
Lindsay, R., Botanic Cardens, Edinburgh. 
Llewelyn, Sir J. T. Bart., F.L.S., Penllergare, Swansea. 
Lynch, R. Irwin, A.L.S., Botanic Gardens, Cambridge. 
McLachlan, R , F.R.S., West View, Clarendon Rial, Lewi.sham, S.B. 
Michael, Albert D., F.L.S , Cadogan Mansions, Sloanc Square, S.W. 
Morris, D., M.A., F.L.S., 11, Kew Gardens Road, Kew, 
Miiller, Hugo, Ph D., F.R 8,13, Park Square East, Regent’s Park, N.W. 
Oliver, F. W., D.Sc., F.L S., 10, Kew Gardens Ro.ad, Kew. 
Pascoe, F. P., F.L.S., 1, Burlington Road, Westbourne Park, W. 
Plowright, C. B., F.L.S., 7, King Street, Kings Lynn. 
Russell, Dr. W. J., F.R.S., 34, Upper Hamilton Terrace, N.W. 
Salvin, Osbert, F.R.S., Hawksfold, Fernhurst, Haslemere. 
Scott, D. H., Ph.D., F.L.S., The Laurils, Bicklev, Kent. 
Symons, G. J., F.R S., 62, Camden Square, N.W. 
Veitch. H. J., F.L.S., Royal Exotic Nursery, King’s Road,Chel.sea,S.W. 
Ward, Professor Marshall, F.R S., The Laurels, E ogle field Green, Staines 
Weiss, F. Ernest, B.Sc., F.L.S, Birchbank, Christchurch Road, 
Hampstead. 
Wilson, Geo, F., F.R.S., Heatherbank, Weybridge Heath. 
Fruit and Vegetable Committee. 
Chairman —Crowley, Philip, F.L.S , Wad Ion House, by Croydon. 
Vice-Chairmen —T. Francis Rivers, Sawbridgeworth; John Lee, 
78, Warwick Gardens. Kensington ; R. D. Blackmo e, Teddington. 
Secretary. —Archibald F. Barron, Royal Horticultural Society, 
Chiswick, W. 
Balderson, H., Corner Hall, Hemel Hempstead. 
Bates, W., Poulett Lodge Gardens, Twickenham. 
Bennett, W., Rangemore Park Gardens, Burton-on-Trent, 
Bunyard, George, The Nurseries, Maidstone. 
Cheal, J., Crawley, Sussex. 
Cliffe, G., Shoreham Place Gardens, Sevenoaks. 
Co'eman, W., Bastnor Castle Gatdeas, Ledbury, 
Cummins, G. W., The Grange Gardens, Wallington. 
Dean, A., Bedfont, Feltham. 
Divers, W. H., Ketton Hall Gardens, Stamford. 
Dunn, Malcolm, The Palace Gardens, Dalkeith, N.B. 
Fairgrieve, P. W., The Palace Gardens, Dunkeld, N.B, 
Ford, Sidney, Cowfold, Horsham, 
Hogg, R., LL.D., F.L.S., 99, St. George’s Road, Pimlico, 
Hammond, G , Pilgrims Hatch, Brentwood. 
Hudson, J., Gunnersbury Hou“e, Acton. 
Laing, J., jun.. Forest Hill, S.E. 
Lane, Fred., Berkhamstead. 
Mclndoe, James, Hutton Hall Gardens, Guisborough. 
Miles, G. T., Wycomb Abbey, High Wycomb. 
Moss, A„ 39, King William Street, E.C. 
Norman, G., Hatfield House Gardens, Hatfield, 
Pearson, A. H., The Nurseries, Chilwell, Notts. 
Reynolds, G., The Gardens, Gunnersbury Park, Acton. 
Ross, Charles, The Gardens, Welford Park, Newbury. 
Saltmarsh, T. J., The Nurseries, Chelmsford. 
Smith, James, The Gardens, Mentmore, Leighton Buzzard. 
SuHon, A. W., F.L.S., Reading. 
Taber, G., Rivenhall, Witham, Essex, 
Veitch, P. C. M., The Royal Nurseries, Exeter. 
Warren, W., Worton Gardens, Isleworth. 
Weir, Harrison, Sevenoaks. 
Willard, Jesse, Holly Lodge Gardens, Highgate, N. 
Woodward, G., Ba-ham Court, Teston, Maidstone. 
Wright, John, 171, Fleet Street. 
Wythes, G., Syon House Gardens, Brentford. 
Floral Committee. 
Chairman. —Marshall, William, Auchinraith, Bexley. 
Vice-Chairmen —D’Ombrain, Rev. H. H., Westwell Vicarage, Ashford, 
Kent; Fraser, John. Lea Bridge Road, Leytonstone, E. ; Paul, George, 
The Old Nurseries, Cheshunt. 
Secretary. —Archibald F. Barron, Royal Horticultural Society, 
Chiswick, W. 
Bain, W., The Gardens, Burford Lodge, Dorking. 
Baines, Thomas, Fern Cottage, Palmer’s Green, N. 
Bause, F., Portland Road, South Norwood, S.E. 
Bennett-Poe, J. T., 29, Ashley Place, S.W. 
Bryceson, G., Flora Villa, Plumstead. 
Cannell, H., Swanley, Kent. 
Cant, F., Braiswick, Colchester. 
Davis, N., Lilford Road, Coldharbour Lane, Camberwell, S.E. 
Dean, R., Raneleigh Road, Ealing, W. 
Druery, C. T., F.L S , 25, Windsor Road, Forest Gate. 
Ellis, W. H., Clovelly, Lampton Road, Hounslow. 
Furze, W., Roselands, Broom Road, Teddington. 
Girdlestone, T. W., Sunningdale, Berks, 
Gordon, G., Endsleigh, Priory Park, Kew. 
Goldring, W., 52, Gloucester Road, Kew. 
Herbst, H., Kew Road, Richmond, Surrey. 
Ingram, W., Belvoir Castle Gardens, Grantham. 
Jeffries, C., Boston House Gardens, Brentford. 
Laing, J., Forest Hill, S E. 
Leach, W. C., Aldbury Park Gardens, Guildford. 
Lowe, R. 3., Ashbridge Gardens, Berkhamstead. 
May, H. B., Dyson’s Lane, Upper Edmonton. 
Mawley, E., Rosebank, Berkhampstead. 
