The use of statistics in textual criticism is always attractive to the student, but is apt to be disappointing in application. It resembles the attempt of Raymond Lull in the thirteenth century to convert the Mohammedans by a mathematical demonstration of the truths of Christianity: in both cases the insights have been chiefly gained through other and more direct processes, and the figures can seldom do more than provide interesting illustration, or the test of an hypothesis; they seldom lead to much new knowledge. Moreover, it is very difficult to make the statistics either complete or perfectly accurate. Nevertheless, in textual criticism something can be learned from statistics both by way of verification and of suggestion; and the following study of the chief versions of the Book of Acts seems to the writers to yield some profitable fruit.