An Enormous Blast.— On Thursday, says the Northern Whig, Messrs. Ritchie and Jackson, who have recently Lome ..
... An Enormous Blast.— On Thursday, says the Northern Whig, Messrs. Ritchie and Jackson, who have recently Lome possessed of the quarries.of Scrabo, near Newtownwards, resolved to try system of rock blasting by means of tunnel and plan of igmting the powder ...