1943 b. Medium-grade. Those who are excessively dull in learning from books but can acquire manual dexterity in a very limited number of directions, after much teaching. (i.e. a boy trained to shoe-making might learn to do that very well, but would not be able to take up another simple occupation, without being again taught through a long time as though he were a little child.) They are commonly good and simple children never developing powers of self-direction. Their powers of self-control are generally better than those of the high-grade case - or rather they are generally less tried. If they are exposed to the same temptations they may fail in the same way, but their lack of perception and capacity is to some extent a safe-guard to them. If well-developed physically they may fail as do the higher grades, but they are as a rule much easier to control. b. Low-grade: - Sometimes having special mental gifts, but more commonly low-grade all round. They can be trained to do manual work of a very simple kind under strict supervision, but they do not acquire lasting habits of work and have no perception of cause and effect. They have almost no reasoning power. They are physically generally very inert and if left alone prefer absolute inaction to any form of amusement or em-[sic] employment (except eating). (2) Imbeciles:- It is difficult to find a definition of these which does not appear to co-incide with that for low-grade [obscured] Feeble-minded. They may be described as low-grade F.M. who are not able to be taught the proper care of their persons and whose habits require constant attention. They are apt to be excessively restless to "echo" (i.e. repeat words spoken instead of answering them.) They are occas- [end]