ignorant of their proper origin. There are some, however, of this description whose original form is well known. One of these Paddy displays considerable ingenuity in using. “By the cross” can scarcely be classed under the mock oaths, but the manner in which it is pressed into asseverations is amusing. When Paddy is affirming a truth he swears “by the crass” simply, and this with him is an oath of considerable obligation. He generally, in order to render it more impressive, accompanies it with suitable action, that is, he places the forefinger of each hand across, that he may assail you through two senses instead of one. On the contrary, when he intends to hoax you by asserting what is not true, he ingeniously multiplies the oath, and swears “by the five crashes,” that is by his own five fingers, placing at the same time his four fingers and his thumbs across each other in a most impressive and vehement manner. Don't believe him then--the knave is lying as fast as possible, and with no remorse. “By the crass o' Christ” is an oath of much solemnity, and seldom used in a falsehood. Paddy also often places two bits of straws across, and sometimes two sticks, upon which he swears with an appearance of great heat and sincerity--_sed caveto!_ Irishmen generally consider iron as a sacred metal. In the interior of the country, the thieves (but few in number) are frequently averse to stealing it. Why it possesses this hold upon their affections it is difficult to say, but it is certain that they rank it among their sacred things, consider that to find it is lucky, and nail it over their doors when found in the convenient shape of a horse-shoe. It is also used as a medium of asserting truth. We believe, however, that the sanction it imposes is not very strong. “By this blessed iron!”--“by this blessed an' holy iron!” are oaths of an inferior grade; but if the circumstance on which they are founded be a matter of indifference, they seldom depart from truth in using them. We have said that Paddy, when engaged in a fight, is never at a loss for a weapon, and we may also affirm that he is never at a loss for an oath. When relating a narrative, or some other circumstance of his own invention, if contradicted, he will corroborate it, in order to sustain his credit or produce the proper impression, by an abrupt oath upon the first object he can seize. “Arrah, nonsense! by this pipe in my hand, it's as thrue as”--and then, before he completes the illustration, he goes on with a fine specimen of equivocation--“By the stool I'm sittin' an, it is; an' what more would, you have from me barrin' I take my book oath of it?” Thus does he, under the mask of an insinuation, induce you to believe that he has actually sworn it, whereas the oath is always left undefined and incomplete.