A speculative journal published four times a year by Science and Technology Letters in Northwood, Middlesex, England. Its editor is Professor Alan Mackay, a crystallographer of Birkbeck College, and it has an international editorial board. It incorporates Developments in Chemical Engineering. There are about twelve articles in each issue, a mixture of normal chemical engineering topics and speculative sometimes highly speculative articles from across the board of science, technology, and mathematics. The 1992 issues included, for example, articles titled “Present trends in process safety,” “Is the Cosmological Principle inconsistent with the Second Law of Thermodynamics?” and “Greenhouse Warming: a clear and present benefit?” and a book review of Gas Fluoridation. There is definite need for a place to publish speculations off-the- wall thinking, letting the imagination loose about science, technology, and mathematics, but it is very difficult, if not impossible, to get such unorthodox views published in science and technology journals, which tend to be disciplinary and conservative. This journal provides such a place in the spaces between fairly orthodox occasionally speculative chemical engineering contributions, containing the technical stuff of chemical manufacturing along with such stuff as dreams are made of.