One of the plausible methods to bridge the gap between the two LISP dialects is to define, as a part of the basic software, a group of functions in the dialect already implemented on the machine at hand. This technique is well-known and used among the skilled LISP users. But it is, in practice, a considerably troublesome job to manage, at least for the beginners, for the lack of their experience and appropriate materials. This report describes the author's attempt of expanding the descriptive power of ACOS-LISP, and that of transferring the UCI-LISP version of MCELI to the extended ACOS-LISP system, which was done as a temporary goal of the extension. All of the LISP functions introduced in the course of the attempt are also presented. Many of them had been originally defined by Schank, R.C. et al., but had to be fixed in most cases in transferring them. And the rest had to be newly added by the author.