HOUSES AND CONVENIENCES. 39 
houses may be construcied, so as not to show even the 
convenience for the heating apparatus, further than a doer 
to shut down over the under-ground vault, and even this, 
if thought objectionable, may be made to form a part of 
one of the pathways inside. The example given is an 
arrangement of, and now under the charge of, the writer, 
and answers admirably. Hot water is here used for heat- 
ing, but the same is equally applicable to the furnace and 
common flue, with the difference of placing the chimney 
at the opposite end. 
Since the above was written we have been apprized of 
a method of ventilating double pitch curvilinear houses, 
which has been invented by Mr. William Webster of 
Rochester, and for which he is about taking out a patent. 
His plan consists in having a movable chamber along the 
whole length upper part of the house, and which he can 
lift or lower at pleasure. If the machinery can be made 
to work well and kept in permanent order, he has con- 
ferred a great benefit upon the public, and seit the 
thanks and Pri which all such useful improvements 
ought to receiv 
