The (London) National Rose Exhibition, at the close of July last, was a success. The Gardeners' Chronicle says: "Half the nurseries in England poured their treasures into St James's Hall, and all their value could be judged of in an hour. It may indeed remain doubtful whether General Jacqueminot takes precedence of Lord Raglan and the Giant of Battles, or Joan of Ark of Madame Vidot, or Madame Vidot of Auguste Mie, or Madame Hector Jacquin of Coup de'Hebe ; but nobody can doubt that their glorious forms constitute present perfection, as the Panachee d'Orleans, a faded painted beauty, and the vulgar Village Maid are the reverse. This, too, was shown, that two-thirds of the varieties still in cultivation may be now consigned to the limbo of oblivion, to the equal profit of both buyer and seller.

"Three tables running the entire length of the body of the building were covered with boxfuls of Roses of every hue, both in the shape of single blooms and of exhibitions of three trusses of each variety. Encircling the raised platform at the end of the hall in front of the great organ was a grand display of blooms, from Mr. Rivers, of Sawbridgeworth. These were, however, contributed merely for the decoration of the place, and therefore were not shown in competition with others. Among them were some of the finest varieties now in cultivation, and their numbers (they occupied some 20 boxes) served to show what kind of treat a visit to Sawbridgeworth at the present time would afford.

"As regards prizes for the best collection, three trusses of each variety, a silver cup, value ten guineas, was awarded to Mr. Paul, of Cheshunt, and a second cup of five guineas to Mr. Cranston, of Hereford. For collections of one truss of each variety, a five guinea cup was given to Mr. Francis, of Hertford, and a second prize in the same class was awarded to Mr. Cant, of Colchester. For forty-eight distinct varieties in single trusses, Messrs. Paul had a first prize, and Mr. Turner, of the Royal Nursery, Slough, a second. For twenty-four, in single trusses, a first prize was awarded to Mr. Cranston, and a second to Mr. Cant. Other prizes were awarded to Messrs. Paul, Hollamby, and Francis.

"In the Class of Amateurs who regularly employ a gardener, prizes were also awarded, as well as to amateurs not regularly employing a gardener.

"In these collections we observed charming trusses of the following varieties, viz., Hybrid Perpetuals: - Souvenir de la Reine d'Angleterre, Madame Vidot, Duchess of Norfolk, Madame Heraud, Ravel, Madame Hector Jacquin, Victor Trouillard, LaVille de St. Denis, Madame Masson, Duchesse d'Orleans, Comte de Nanteuil, Cardinal Patrizzi, Madame Place, Arthur de Sansal, Lady Stuart, Gloire de Vitry, Queen Victoria, Madame Knorr, Orne-ment des Jardins, General Simpson, General Castellane, Jacques Lafitte, Gloire de Parthenay, Panachee d'Orleans, Madame de Cambaceres, Prince Leon, Amandine, Geant des Battailles, Mathurin Regnier, Lord Raglan, Caroline de Sansal, William Griffith, Noemi, Jules Margottin, Madame Rivers, Louis Odier, Glory of France, Triomphe de l'Exposition, Louis Peyronny, Alexandrine Bachmeteff, Helen, Auguste Mie, Baronne Prevost, Louise Magnan, Sydonie, Lion des Combats, La Reine, General Pelissier, General Jacqueminot, and Joan of Arc. Gallica: - Transon Goubault, Cynthia, Boule de Nanteuil, Colonel Coombes, Columella, Duchess of Buccleugh, Latour d'Au-vergne, Louis Philippe, Prince Regent, Daubenton, Gloire de Colmar, Melanie, William Tell, Dido, Surpasse Tout, Letitia, D'Aguesseau, Ohl, Reine des Francais, Kean. Bourbon: - Acidalie, Souvenir de Malmaison, Coupe d'Hebe. Hybrid China: - Brennus, Gloire de Couline, Chenedole, Victor Hugo, Madeleine, Paul Perras, Comtesse Lacepede, Madame Rameau. Tea: - Nephetos, Souvenir d'un Ami, Narcisse, Gloire de Dijon, Madame Willermoz, Boug6re, Devoniensis.

"It may be interesting to know that in some forty different collections from as many exhibitors, blooms of the following varieties occurred in nearly every one of them, viz.: Jules Margottin, Gen. Jacqueminot, Madame Cam-baceres, Caroline de Sansal, Madame Domage, Gloire de Dijon, Paul Perras, Prince Leon, Gen. Castellane, Paul Ricaut, Lord Raglan, Madame Vidot, Auguste Mie, Gen. Brea, and Baronne Prevost. It may therefore be taken for granted that these are the most popular kinds.

"The number of times the following blooms appeared in the different exhibitions, of which, as has been stated, there were about 40, is as follows: - Robin Hood, 5 times; Triomphe de Paris, 7; Dr. Marx, 6; Lady Alice Peel, 3; Mrs. Elliott, 8; Pius the Ninth, 10; Comte Bobrinsky, 5; Standard of Marengo, 1; Brennus, 3; Dupetit Thouars, 6; Devoniensis, 9; Niphetos, 4; Solfaterre, 6; and Safranot, 8 times.

"The following list contains some of the very finest varieties selected from the whole exhibition. Blush: - Madame Vidot, Madame Rivers, Duchess of Orleans, Auguste Mie, (deep blush), Madame Phelip, Caroline de Sansal, and Mathurin Regnier. Scarlet or Dark Crimson: - Lord Raglan, Gen. Jacqueminot, Alexandrine Bachmeteff, Le Lion des Combats, General Castellane, Prince Leon, Gloire de France, Paul Ricaut, and Sir J. Franklin. Rose: - Colonel Rougemont (very like Baronne Prevost, and quite as large,) General Brea, Madame Hector Jacquin, Jules Margottin, William Griffiths (round and full as a Ranunculus), Madame Laffay, Gloire de Vitry, Prince Imperial, La Ville de St. Denis, Coupe d'Hebe, Le Reine, and Paul Perras. Yellows: - Cloth of Gold, some fine blooms of which were exhibited greatly superior to those of Miss Gray, Vicomtesse Decazes, Persian Yellow, and Old Double Yellow. Of Whites none are very good. The best are Dr. Henon, Louise Magnan, and Beaute de Melan. Stripes were not good. Among them we noticed Panachee d'Orleans, CEillet Parfait, and Perles des Panach6es. Among Moss Roses we have little to recommend. What were shown as new were not in good condition.

Of Autumnal ones Salet and Madame Ory seemed the best.

"Of Roses in vases and baskets there were three or four exhibitions. That to which the prize was awarded came from Mr. Turner, of Slough. It consisted of a vase some two feet in diameter, on which was reared a pyramid of Roses nearly four feet in height. The blooms were all fixed in wire-work, in the interior of which were pans of water, in which their stalks were placed to keep them fresh. The blooms were well arranged as to color, and though a little too formal in appearance, it was nevertheless striking and effective. Another large device with an angular base terminating in a pyramid was not so much admired.

"It will be gratifying to know that during the day upwards of £100 were taken at the doors. Such encouragement, we hope, will enable the promoters of this in every respect highly successful exhibition to hold another 'Court of Roses' next year".