Women lecturers are not so rare, though their numbers are still comparatively small. They are most numerous in Education, but are appointed also in other Faculties, salaries being the same as for men. The main avenue to University teaching for women lies through the Colleges for women only, where they, of course, form the entire residential staff; the tutorial system of Cambridge and Oxford thus affords employment in higher teaching to a considerable number of women. Further, the residential Halls attached to the mixed Universities provide posts of responsibility and prestige for a considerable number of educated women as Wardens or Principals. The recognition accorded to these officials by the University itself is, however, not always entirely satisfactory. Upon the whole, the present position of women upon the staffs of the Universities and Colleges is one of comparative subordination. Very few occupy senior posts of importance and prestige. Except in the Women's Colleges, the higher direction of the teaching and the general administration are still almost wholly in the hands of men; and this is the case even where, as in Wales, the number of men and women students is fairly equal. On account of the comparative scarcity of women in senior positions, it is usual in most non-residential Colleges and Universities to employ some senior woman as a member of the administrative staff, charged with the duty of superintending the general welfare of the women students.[3] Her status and duties vary greatly—from those of a mere chaperon to those of a Senior authority, consulted in all matters concerning women students individually and collectively, and responsible for making representations as to any matter, academic or social, affecting them. It is partially realised that women students, having often received a different education from that given to boys and having the prospect of other careers and other spheres of work, may be specially affected by academic legislation; and in matters of building and equipment their needs are always to some extent special. The most enlightened Universities and Colleges therefore afford considerable powers and status to this woman official (who is known by various titles—Dean, Senior Tutor, Censor, etc). In residential Universities the Heads of the Women's Colleges have the necessary academic information, official status, and knowledge of their students' needs. [3] There are, however, some eight or nine exceptions. The Association of Head Mistresses has asked that some such official shall be appointed wherever there are women students.