Archive image from page 553 of A dictionary of modern gardening. A dictionary of modern gardening . dictionaryofmode00john Year: 1847 S T 0 560 S TO is desired, the latitude being 51° 31 | Mr. Seymour, gardener to tlie Count- and the sun's declension then 16° 36 j ess of Bridgewater, at Ashridge Pari<, nortli, therefore the roof ought to slope at an angle of 34'-' 55'. Fig. 157. has these sensible remarks upon the subject: â ' There ought to be three or four sizes of panes used in horticultural struc- tures ; suppose, for example, the largest size for vineries, peach, and fig-houses ;
Archive image from page 553 of A dictionary of modern gardening. A dictionary of modern gardening . dictionaryofmode00john Year: 1847 S T 0 560 S TO is desired, the latitude being 51° 31 | Mr. Seymour, gardener to tlie Count- and the sun's declension then 16° 36 j ess of Bridgewater, at Ashridge Pari<, nortli, therefore the roof ought to slope at an angle of 34'-' 55'. Fig. 157. has these sensible remarks upon the subject: â ' There ought to be three or four sizes of panes used in horticultural struc- tures ; suppose, for example, the largest size for vineries, peach, and fig-houses ; the next for pits for growing pines, melons, and cucumbers; a third size for frames; and the smallest for hand- glasses. If the sizes are so arranged, they will be found economical by the saving of glass. When there is a gene- ral repair going on with the hot-houses, the glazier ought to begin with that in which tlie largest sized panes are first, and work down to the smallest, and not, as is freejuently the case, cut a large piece of glass away to replace a small one. In my opinion, there are no better sized panes for hot-houses than seven inches wide, by four and a half deep ; for pits, by three inches deep ; lor frames, five and a half by two and a half inches deep, &:c., with a lap of one- eighth of an inch. The glass should be clear, stout, and selected as flat as pos- sible, so that the panes may lie perfectly level one upon the other, and so cut being vertical. The asterisk d points that they may not fit too tightly against out its position at the equinoxes, and Ej the ribs, (which is frequently practised its position at midwinter. If the best by some glaziers,) but room'should be glass be employed, it is an excellent i left for the ribs to swell and expand, plan to have it put double in each sash. Before a light is glazed, all the panes In latitude 52°, Mr. Knight found from lengthened experiments, that the best angle is about 34°, considering the services o
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