It is the most usual plan in the cultivation of the Pine-apple through all its stages of growth to have it subjected more or less to bottom-heat. The practice is so general that it would lead many to infer that they cannot be grown in any satisfactory manner without it. This summer I tried a house of successions as soon as potted, placed upon the surface of the bed, the same as a lot of ordinary plants - say Geraniums, for instance - the largest ones at the back, and altogether just as thick as they should have been placed at the time. When the plants were thus set, some observers had their doubts about their success, but I felt confident that they would do well enough; and I am glad to say that they have done well, and to my entire satisfaction. By the time that the plants became too thick, more room was afforded them, and I can say that I never saw a lot of plants grow better. In this state, the plants require water oftener, but they can be better fed, and the plants are much surer to be kept in right condition at the root with a little extra attention. If any one has thought on the above plan, and not seen it carried out in practice, they can rely on the above being a faithful description.

Robert Mackellar.

Elvaston Castle.