ROSE-FORCING IN AMERICA. 



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characterises Mr. Pierson's Roses. The benches were all raised and of the 

 usual form. There are four tiers of ventilators : two on the roof spans, 

 hinged at the ridge ; one in each of the walls, hinged at the eaves. More 

 attractive than any of these was a short house, 28 ft. wide, built as an 



experiment. The size of the plants, ' American Beauty,' prohibited a 

 photograph of this interior, but it was possible to get an end view of the 

 exterior (fig. 132). This is a patented construction, Mr. Pierson's own 

 invention, and a very pleasing one. The house is much lighter than the 



