18.The laws of excise, though more effectual for the purpose for which they were instituted, are, in this respect, more vexatious than those of the customs.
19.It sometimes happens, indeed, that the quantity of land which can be fitted for some particular produce, is too small to supply the effectual demand.
20.The opposition arising from the private interest of individuals, is likely to be as effectual for preventing the two last as the first-mentioned scheme of reformation.