A recent survey made by the Education Department of the children attending the primary schools in a typical area disclosed the fact that out of a total school population of 16,499 no fewer than 950 pupils, constituting 5.7 per cent. of the total school enrolment, are retarded two years or more. Some of these may be classed as dull normal; some may be suffering from remediable physical defects; others may be merely the victims of unfavourable circumstances, while others again may be what Burt calls "late bloomers"--_i.e._, cases of slow development. Many of them, however, will ultimately prove to be mental defectives. Deficiency sometimes does not reveal itself definitely until the pre-adolescent period or early adolescence. Of the total number on the school registers 266, or 1.6 per cent., are retarded three years or more. It is interesting to note from information supplied by Mr. N. R. McKenzie, Inspector of Schools, that this is exactly the percentage of defectives discovered in the schools of a section of the city of Toronto as the result of a psychological survey. It also corresponds with the number in the Vancouver city schools, where nineteen special classes are operating with a school population of 19,000--_i.e._, one class per 1,000 pupils. For the purpose of this report a preliminary survey from information supplied by social workers, school-teachers, police, Hospital Boards, &c., has been made by the Education Department of what may be regarded as the obviously feeble-minded and epileptic cases known to exist outside institutions in the Dominion. The following figures show the number of such cases reported, but these figures are incomplete--the actual number must be greater:-- At 24th June, 1924. Feeble-minded. Epileptic. Age. Male. Female. Male. Female. Under sixteen years 524 285 41 43 Over sixteen years 305 203 35 31 ___ ___ __ __ 829 488 76 74 _Recapitulation._ Males 905 Females 562 _____ 1,467 _Table showing Ages of Pupils in the several Classes of the Primary Schools._