80 WJNBOW GARDENING. 
iron, still it may be constructed of wood ; is about twenty feet wide aud 
from forty to fifty feet long; cost not less than $5,000. Most of the green 
houses in this country are now built upon the plan of low curved roofs, which 
afford great economy of space and heat, yet we believe variety and taste will 
admit the use of other styles. Such a one as this is a novelty in this country 
Fig. 71.— Interior of tbeGovernmeut Conservatory at Wasliington, D. C. 
Rarely have we seen any thing like it, presenting as it does a decided look oi 
richness and elegance in the rural grounds of any wealthy villa proprietor. It is 
worth adoption. 
