scending; or, at the lower story, and regularly ascending.
"Any other permanent and familiar class of objects will, in general, answer the purpose better than the rooms of a house. I was myself educated in the vicinity of Oxford-street, and the streets running out of that street south and north (beginning at Charles-street, Soho-square, and so on to Park-lane, and down on the other side to Rathbone-place and Hanway-yard) are the permanent and familiar set of objects, which I make use of for my own purpose of successive association. The counties in England, the kingdoms and the countries throughout the world, the villages, and other objects on a great road, or the streets of a city, are all well suited to this business of association; and either of them may be taken indifferently by various persons, according to their acquaintance with them. The greater the variety of ideas connected with this set of objects, which may be called the associating key, the more easy, and the more certain is the power of recollection.
"If I do not hazard a charge of egotism; I shall mention, as illustrative facts, that by this new art I once committed to memory, in a single morning, the whole of the propositions contained in the three first books of Euclid, and
