404 
Brick-Making, 
When the contractor, found the moulds, sand for 
moulding, the breeze for mixing and burning, he could 
get all the labour performed from moulding the brick, to 
delivering it well burnt in the clamp for 11^. %d, sterling 
per thousand. The bricks so made, he delivered at any 
reasonable distance in London for 25^. 6c/. sterling per 
thousand, he paying a duty also of 2^. 6c/. per thousand. 
Bricks made in a close conical kiln, are much better 
than in an open clamp, and the saving of waste will in 
time pay for the kiln. In this country, the faults are, 1st. 
The earth contains too much stony matter, gene rally : 
2dly. The drying in the air, the skintling, is not continued 
long enough : Sdly.^ The bricks are seldom thoroughly 
burnt to the centre, for want of the admixture of breeze. 
The profit upon a thousand bricks was very great, and 
would well justify much more than lOG/. sterling per 
acre for good brick earth. A cube yard of good brick 
earth, I think, would make about 500 bricks when well 
worked and mixed. 
Plain tiles and pan tiles, usually made of a stiffer and 
more ochry clay, are not used with us. I have seen a sub- 
stitute used in England, which I think would well answer 
here : viz. a kind of tile about nine inches by four inches, 
made of coarse pasteboard about one fourth of an inch or 
one half of an inch thick, and when fully impregnated with 
glue, covered with fine sifted sand. This would be light, 
impervious to moisture if a small quantity of wax were 
melted in the glue, and not easily set on fire, or rather not 
capable of being burnt. T. C. 
