Lo.nuo.v, l»ec. i;th—A fetter from Perth on the li.'ih, says: The die is cast. The govern meat has resolved to adopt a rigorous' policy towards Hungary. One hundred and eighty Protesian' iK.biemen and gentlemen have been imprisoned for taking part iv the assemblies which protested against the imperial paienu id December. The Austrian iinnv in Hungary will soon be nearly fifty thousand strot.g