Unfortunately, it is the latter of these two conceptions that is the prevailing one--unfortunately for the deaf, for their burden is quite sufficient as it is. The public has been and is under many misapprehensions and delusions regarding the deaf.[136] Being thrown intimately with them but seldom, people often come to form curious ideas respecting the deaf, but ideas which are more or less unhappy ones. There is frequently an attitude towards them combined of wonder, misgiving, fear, aversion--a vague feeling or belief that the deaf are more or less distinct in their thoughts and actions from other people, that they are somehow "unnatural" or "uncanny."[137] VIEWED AS A DEFECTIVE CLASS Not only are the deaf often looked upon as a strange class in the community, but they are not uncommonly known as "defectives," and this is the classification frequently applied to them. It is true that the deaf are "defective" in that they are deprived of one of the most important of the physical senses; but, in addition, the term often carries a connotation of mental, or even of moral, aberrance, and results in the infliction upon the deaf of an unnecessary brand. In many libraries such a classification is found, and the deaf are catalogued under the heading "defective." In the "Index of the Economic Material in Documents of the States of the United States" of the Carnegie Foundation, the deaf and the blind are grouped as "defectives" along with the feeble-minded and consumptives.[138] Though in such a classification, any untoward signification is disclaimed, and it is held to be merely one of convenience of arrangement, it remains true that terms are employed and associations involved that to a certain extent do a very real injury to the deaf.[139] VIEWED AS AN UNHAPPY CLASS