In reply to Mrs. R. P., page 106, respecting the cultivation of Cattleya Mossia?, I have found this to succeed best in a temperature of 65° to 75° in summer to rise with sun heat, and 55° to 60° in winter when growing. It requires a good supply of water at the roots, say three times a week, when very hot and dry weather. When it requires potting it should be done in March in good fibre peat and a little live sphagnum moss with plenty of drainage; three parts fill the pot with broken pot shreds, and then place a thin layer of moss to keep the drainage clean and then fill up with the compost. Care must be taken not to break the roots.

Odontoglossum grande will do best in a cooler house, the temperature 60° to 65° in summer and 45° to 50° in winter; rise 10° with sun heat. This will do well in the same compost as Cattleya Mossite; well elevate the plant above the rim of the pot and should be potted as soon as it begins to grow.

Has not Mrs. R. P. made a mistake in Odonto-glossum citrina? I do not know of any Odouto-glossum under that name. Does she not mean Oattleya citrina? If so, this should be grown upon a block of wood. Fix the plant so that the foliage is hanging downwards. In its native habit it grows upon the under branches of trees where it can hang in a downward position: it requires a good supply of water in its growing season. There are several works upon the cultivation of Orchids, the best probably is that of B. S. Williams, sold at the Gardener's Monthly office.