Memories as badly mutilated as the following, however, are not counted: "A lot of buildings" for "three houses;" "a man" for "a fireman"; "who was sick" for "who was asleep"; etc. Occasionally we may give half credit, as in the case of "was seventeen thousand dollars" for "was fifty thousand dollars"; "and fifteen families" for "and seventeen families," etc. REMARKS. Are we warranted in using at all as a measure of intelligence a test which depends as much on instruction as this one does? Many are inclined to answer this question in the negative. The test has been omitted from the revisions of Goddard, Kuhlmann, and Binet himself. As regards Binet's earlier test of reading for two memories, in year VIII, there could hardly be any difference of opinion. The ability to read at that age depends so much on the accident of environment that the test is meaningless unless we know all about the conditions which have surrounded the child. The use of the test in year X, however, is a very different matter. There are comparatively few children of that age who will fail to pass it for lack of the requisite school instruction. Children of 10 years who have attended school with reasonable regularity for three years are practically always able to read the selection in thirty-five seconds and without over two mistakes unless they are retarded almost to the border-line of mental deficiency. Of our 10-year-olds who failed to meet the test, only a fourth did so because of inability to meet the reading requirements as regards time or mistakes. The remaining failures were caused by inadequate report, and most of these subjects were of the distinctly retarded group. We may conclude, therefore, that given anything approaching normal educational advantages, the test is really a measure of intelligence. Used with due caution, it is perhaps as valuable as any other test in the scale. It is only necessary, in case of failure, to ascertain the facts regarding the child's educational opportunities. Even this precaution is superfluous in case the subject tests as low as 8 years by the remainder of the scale. A safe rule is to omit the test from the calculation of mental age if the subject has not attended school the equivalent of two or three years. It has been contended by some that tests in which success depends upon language mastery cannot be real tests of intelligence. By such critics language tests have been set over against intelligence tests as contrasting opposites. It is easy to show, however, that this view is superficial and psychologically unsound. Every one who has an acquaintance with the facts of mental growth knows that language mastery of some degree is the _sine qua non_ of conceptual thinking. Language growth, in fact, mirrors the entire mental development. There are few more reliable indications of a subject's stage of intellectual maturity than his mastery of language.