. The Practical brick and tile book. Trom frost is over. After the summer use of it, it must be protectedby faggots or litter against the wet and the frost of winter. A kiln of these dimensions will contain— 47,000 1-in. bore pipe ,500 \\20,000 If12,000 2i and the last-mentioned size will hold the same number of the inchpipes inside of them, making therefore 2i,000 of both sizes. In good 26C. ^ weather this kiln can be filled, burnt, and discharged once every fort-night ; and fifteen kilns maj be obtained in a good season, producing— 705,000 1-iu. pipe H „ „Or 300,000
. The Practical brick and tile book. Trom frost is over. After the summer use of it, it must be protectedby faggots or litter against the wet and the frost of winter. A kiln of these dimensions will contain— 47,000 1-in. bore pipe ,500 \\20,000 If12,000 2i and the last-mentioned size will hold the same number of the inchpipes inside of them, making therefore 2i,000 of both sizes. In good 26C. ^ weather this kiln can be filled, burnt, and discharged once every fort-night ; and fifteen kilns maj be obtained in a good season, producing— 705,000 1-iu. pipe H „ „Or 300,000 If „ „ and so on in proportion for other sizes. —If a kiln of larger diameter be built, there must be morefire-holes, and additional shed room. APPENDIX. 261 5th Point. Cost of forming the establishment. The price chared by Messrs. CotUm and Hallen for the machine, with its complement of dies,;» £25 Price of pug-mill 10 Cost of erecting kiln 5 Cost of sheds, straw 10 60 (The latter item presumes that the farmer has hurdles of his own.) 6th Point. Cost of tiles when ready for sale. As this must necessarily vary with the cost of the fuel, rate ofwages, easy or difficult clay for working, or other local peculiarities,1 can only give the cost of tiles as I have ascertained it here accord-ing to our charges for fuel, wages, &c., &c. Our clay is strong, andhas a mixture of
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