THE ORCHID WORLD. 



THE ORCHID JURY OF THE ROYAL INTERNATIONAL 



SHOW, 1912. 



The following have accepted the invitation to act as Members of the Orchid Jury of the 

 Royal International Horticultural Exhibition, igi2: — 



Alexander, H. G., Westonbirt Gardens, 

 Tetbury. 



Ashworth, E., Wilmslow, Cheshire. 



Beyrodt, Otto, Marienfelde, Berlin. 



Bolton, W., Warrington, Lanes. 



Chapman, H. J., Oakwood Gardens, Wylam- 



on-Tyne. 

 Charlesworth, J., Haywards Heath. 

 Cobb, W., Rusper, Sussex. 

 Crawshay, de Barri, Sevenoaks. 

 Cypher, J., Queen's Road, Cheltenham. 

 Davis, J., Glebelands Gardens, S. Woodford, 

 de Crom, Jules Hye, Ghent, 

 de Hemptinne, Count Joseph, St. Denis- 



Westrem, Belgium. 

 Dietrich, Ch., Auderghem, Brussels. 

 Hanbury, F. J., Brockhurst, East Grinstead. 

 Hurst, C. C, Hinckley, Leicestershire. 



Kunz, Karl, Vienna, Austria. 

 Lambeau, Firmin, Brussels. 

 Lee, W. R., Heyw^ood, Lanes. 

 Low, Stuart, Enfield, Middlesex. 

 Maron, Ch., Brunoy, France. 

 Moore, G. F., Bourton-on-the-Water, Glos. 

 O'Brien, James, Harrow-on-the-Hill. 

 Peeters, A. A., St. Gilles, Brussels. 

 Sander, Fred., St. Albans. 

 Shill, J. E., The Dell Gardens, Englefield 

 Green. 



Thompson, W., Walton Grange, Stone. 

 Thwaites, R. G., Streatham Hill, S.W. 

 Troyanowsky, J., Moscow, Russia. 

 Vuylsteke, C, Ghent, Belgium. 

 Wellesley, F., Woking, Surrey. 

 White, W. H., Burford Gardens, Surrey. 

 Wilson, Gurney, Haywards Heath. 



CALENDAR OF OPERATIONS FOR MAY. 



By J. T. BARKER. The West H.Il. Hessle, E. Yorks. 



Plants, in all departments, will now be 

 making new growth, and every encourage- 

 ment should be given to induce them to 

 build up their growths quickly. Soft, sappy 

 growth, although extremely large, does not 

 always produce the most, or the best flowers ; 

 therefore we, as cultivators, should grow our 

 plants under those conditions which enable 

 them to solidify themselves as they grow, and 

 so that they may be able to withstand any hard- 

 ships they may have hereafter to encounter. 



Temperatures. As an inducement to the 

 various plants to make rapid growth, the 

 summer temi>eratures should now be brought 

 into operation. The figures given below 

 should be maintained as nearly as possible, 

 but should a spell of cold, inclement weather 

 prevail, no harm will accrue from the 

 temperatures being a few degrees lower than 

 those given : — ■ 



Cool house, day 60 deg. to 65 deg., night 

 55 deg. to 60 deg. 



Intermediate, Cattleya and Mexican 

 houses, day 70 deg. to 80 deg., night 65 deg. 

 to 70 deg. 



Warm house, day 75 deg. to 80 deg., night 

 /5 deg. 



Speaking of temp>eratures, I do not wish 

 to imply that the thermometer, or rather the 

 degrees of heat in the various houses, should 

 be riveted to a certain figure. .Some dis- 

 cretion should be used according to the 

 outside climatic conditions as regards the 

 amount of fire heat used to maintain the 

 various temperatures. An excessive amount 

 of fire heat is harmful at any time, but at this 

 season of the year it can be counteracted by 

 atmospheric moisture. 



Moisture. As the weather gets brighter 

 and warmer, more moisture must be main- 

 tained in the houses to keep our plants in a 

 healthy condition and as a preventive of 

 insect pests. When the weather is hot the 

 floors and staging of our houses cannot be 



