24 Hillside Greenhouses. 



of the sun, passing through the upper part of the roof of one house, and 

 between the posts which support the gutters, give a full supply of light 

 where the shadow of the front wall would otherwise fall, and color the 

 foliage and flowers, as well as cause the wood to ripen. 



The cheapness with which such a house can be constructed is a great 

 gain ; Mr. Strong's having cost him, when complete, but two thousand 

 dollars. At this rate, an acre could be covered over at a cost cf fourteen 

 or fifteen thousand dollars. 



It is proper to state, however, that the stones for the end walls and other 

 parts were found on the estate, and only the cost of hauling charged to the 

 house, while much of the work was done by the nursery-hands, under Mr. 

 Strong's supervision, at much less expense than if mechanics had been 

 hired. Mr. Strong estimated that the cost, where all materials were pur- 

 chased, and the labor specially hired, might range from twenty-five to fifty 

 per cent more. The walls at the sides of the walks, confining the earth 

 in which the plants were growing, were many of them made of concrete, 

 formed by placing two boards upright at proper distance apart, filling be- 

 tween with stones, and pouring into the interstices a liquid cement. When 

 sufficiently dry, the boards are removed, and the surface smoothed with a 

 trowel, making a wall much superior to brick, at less than half the cost. 



The labor of taking care of the house is very slight. Of course, it 

 would depend greaUy upon the crop grown ; but Mr. Strong believes, that, 

 if filled with lettuce, for which it is admirably adapted, one man could do 

 all the work in two such houses, covering more than a quarter of an acre 

 of ground, with perfect ease. 



In conclusion, we may say, that, so well satisfied is Mr. Strong with his 

 house, he intends to build another, still larger, on the hillside immediately 

 adjoining. 



The readers of " The Journal of Horticulture " will recollect the account, 

 in the January number, of Mr. Strong's unprecedented success in propa- 

 gating the Early Rose Potato, by which more than eighty bushels were 

 produced from six pounds of seed ; and a much larger quantity would have 

 been raised but for the unfavorable weather. He is engaged, the present 

 season, in multiplying the new varieties of potatoes with the same extraor- 

 dinary rapidity ; but the descriptions of this and many other interesting 

 operations we must defer to a future occasion. 



