_Presbyterian Oath._--The author of the _Faggot of French Sticks_ remarks, that he never remained ignorant of anything which excited his attention in the streets of Paris when any one passing by could give him the information required: so now that there is such a living encyclopædia to consult as "N. & Q.," no knowledge should be lost for want of inquiry. In more than one publication it has been lately asserted, that presbyterian ministers take the following oath: "We all subscribe, and with hands uplifted to the most High God do swear: 1. That we shall sincerely, really, and constantly through the grace of God, endeavour in our several places and callings to bring the church of God in the three kingdoms to the nearest conjunction and uniformity in religion, confession of faith, form of church government, &c. 2. That we shall in like manner, without respect of persons, endeavour the extirpation of popery and prelacy (that is, church government by archbishops, bishops, deans, and others.)" The Bishop of Exeter, in a recent pamphlet, inserts this parenthesis: "(Whether this actual subscription and oath be still continued, I know not: but the covenant is still a part of the Kirk's symbolical book, and published as such for the education of the people)." Will some friend north of the Tweed be kind enough to settle this point? C. T. "_A Pinch of Snuff from Dean Swift's Box._"--Some years ago I saw in the shop of a dealer in curiosities, in London, an old snuff-box, which was said to have belonged to Dean Swift; it was accompanied with three printed leaves, of the common octavo size, the first page of which commenced with "A Pinch of Snuff from Dean Swift's Snuff Box," (being a description of the snuff-box in question). The next subject on the leaves began with "'Tis a hundred years since." The leaves appeared to have been extracted from some Irish magazine or periodical, published about the year 1845-6, and to contain much valuable and amusing matter. As I have made repeated inquiries among the London booksellers in vain, for the name of the publication from which the above-mentioned extract was taken, I shall feel much obliged if you will permit me to make a similar inquiry through the medium of "N. & Q.," and by so doing you will confer a great favour upon A SUBSCRIBER. Gloucester. _Cromwell's Skull._--I believe that a skull, maintained by arguments of considerable weight to be the veritable skull of the Protector, is now carefully kept in the hands of some person in London. It is understood that this interesting relic is retained in great secrecy, from the apprehension that a threat, intimated in the reign of George III., that if made public, it would be seized by government, as the only party to which it could properly belong.