Interpretability into Lukasiewicz algebras
In this paper we give a characterization of all the interpretations of the varieties of bounded distributive lattices, De Morgan algebras and Lukasiewicz algebras of order m in the variety of Lukasiewicz algebras of order n. In the case of distributive lattices we give a structure theorem that is generalized to De Morgan algebras and to Lukasiewicz algebras of order m. In the last two cases we also give the number of such interpretations.
Equivalence between Varieties of Łukasiewicz–Moisil Algebras and Rings

 The Post, axled and Łukasiewicz–Moisil algebras are important lattices studied in algebraic logic. In this paper, we investigate a useful interpretation between these algebras and some rings. We give a term equivalence between Post algebras of order $p$ and $p$-rings, $p$ prime and lift this result to the axled Łukasiewicz–Moisil algebra $L \cong B_s \times P$ and the ring $\prod ^s F_2 \times \prod ^l F_p$, where $B_s$ is a Boolean algebra of order $2^s$, $P$ a $p$-valued Post algebra of order $p^l$ and $F_p$ is the prime field of order $p$.
ROBERT HOOKE, MONUMENTS AND MEMORY
In June 1682, when Robert Hooke (1635–1703) delivered a lecture to the Royal Society on memory – his first and only excursion into human psychology – he had just witnessed a spectacularly public failure of memory when new texts were added to the Monument (1671–76), which he had designed with Christopher Wren. In a direct civic challenge to royal authority, these explained that the ‘Papists’ had set London's Great Fire of September 1666. This paper examines the tensions and accommodations between the City of London and Charles II that accompanied the Monument's erection; the column serves to dramatize the difficulties besetting would-be memorializers in Restoration England. It is suggested that Hooke's memory lecture must be read, not only in the light of specific political anxieties then attached to memory, but against the other ways in which he grappled with forms of signification, here treated as forms of historical witness.