Greenhouse construction : a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits . AND AVIDTHS. Width F,ct. Heir/hi —Feet 4 o / fi 7 8 9 / o / u / o / / 6 33 21 3i) 48 45 49 24 53 8 56 18 2;t 44 35 32 40 36 45 4S 49 62 07 8 2(i 33 32 3G 52 41 11 45 48 22 9 23 57 29 3 33 5 37 52 41 38 45 10 21 48 2C 33 30 58 35 38 39 41 59 11 24 26 28 36 32 28 36 2 39 17 12 22 r>7 26 33 30 15 33 41 36 52 13 21 2 24 47 28 18 31 36 34 42 14 23 12 26 34 29 44 32 44 From the table it will be seen that in an even spanhouse twe
Greenhouse construction : a complete manual on the building, heating, ventilating and arrangement of greenhouses, and the construction of hotbeds, frames and plant pits . AND AVIDTHS. Width F,ct. Heir/hi —Feet 4 o / fi 7 8 9 / o / u / o / / 6 33 21 3i) 48 45 49 24 53 8 56 18 2;t 44 35 32 40 36 45 4S 49 62 07 8 2(i 33 32 3G 52 41 11 45 48 22 9 23 57 29 3 33 5 37 52 41 38 45 10 21 48 2C 33 30 58 35 38 39 41 59 11 24 26 28 36 32 28 36 2 39 17 12 22 r>7 26 33 30 15 33 41 36 52 13 21 2 24 47 28 18 31 36 34 42 14 23 12 26 34 29 44 32 44 From the table it will be seen that in an even spanhouse twenty feet wide (ten feet from plate to a pointplumb with the ridge), a slope of about thirty degrees(30° 58) can be obtained by raising the ridge six feetabove the level of the plate (the distances for both heightand width being measured from the ends of the sashbars), while, if it is placed at a height of seven feet, aslope of thirty-five degrees will be obtained. In thesame way, taking the figures for the width from the ver-tical column at the left, and the height for the ridgeabove the plate from the upper horizontal row, the num- 54 GREENHOUSE SHOUT SPAN TO THE SOUTH. 55 ber of degrees in the slope of tlie roof will be foundwhere the corresponding lines intersect. SHORT SPAX TO THE SOUTH. The above remarks apply, for the most part, to thepitch of the roof in even span, or in three-qnarter spanhouses, when the long slope of the roof is upon the southside. It was stated, however, that if a slope to thesouth of sixty degrees could be obtained, more of thelight and heat of the sun could be trapped. During thepast two years several houses have been erected with ashort span to the south and the long one to the north (), differing from three-quarter span houses turned halfaround only in having both walls of the same will be seen from the engraving (Fig GO), the housesare built with three walks and two wide beds, the northone being slightly lower th
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Keywords: ., bookcentury1800, bookdecade1890, bookidgreenhouseco, bookyear1894
