Secondly, by a due attention to keeping the inside of the roof, &c. duly painted, and by constantly white-washing the walls and flues in every part of the house, the plants will be greatly benefited, both from having a better reflection and from cleanliness.
A further advantage in stoves newly built may also here be remarked. Where tan only is used, the beds are always filled at the first with new tan entire; but afterwards, constantly with new and old tan intermixt.
Lastly, it is probable that stoves, newly erected, derive their greatest benefit from the good condition of the glass-work; for, however well it may be kept in repair afterwards, it is certain that there never is so much light in an old stove as was at the first. Dirt will find its way into the cavities between the squares, &c. which, obstructing the sun’s rays, darkens and gives a gloominess to the stove.
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He describes a Pine-stove to be heated by steam, in which the vapour is admitted to a brick vault, over which is the bed of tan or earth; this is surrounded by a path and smoke-flues, exactly as in the common form of hot-house.
He also gives a plan of a furnace for burning lime as well as heating hot-houses, as erected at Billing, in Northamptonshire, and at Lady E. Ponsonby’s, at Bishop’s Court, in Ireland; and, subsequently, at various other places in that country.
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