This is a definition of the syntax of the *** language. It consists of modifications and extensions of the "Revised Report on the Algorithmic Language ALGOL 60" which is printed in the "Communications of the ACM", January 1963. The paragraph numbering of that report is used in this paper. The corrections and additions are made partially in Backus normal form, and partially in English, and the choice has been made on the basis of convenience. For example, the use of the weak separator is described readily in a few sentences, whereas the modification to incorporate this into the syntax as described in Backus normal form would have been extensive.
