3. Girls who are more nervous with their friends than with strangers. 4. Girls who are only nervous when talking to one person, but who are quite at home in a crowded room. 5. Girls who are nervous in a crowded place even when they are talking to nobody, or when they neither know nor are known to anybody. 6. Girls who are only nervous when talking to persons of the opposite sex. 7. Girls who are nervous at all times and everywhere. 8. Girls who are only nervous when they are run down in health. There are many other kinds of nervousness, but we cannot enter into the discussion of them here. To everyone who glances down this table it will be apparent that the same explanation will not accord for all these conditions. Such diametrically opposite states as that of Nos. 4 and 5 cannot be due to the same cause. We must therefore briefly describe the various mental states on which each form of nervousness depends. The first case, girls who blush or are nervous when talking to strangers but are perfectly at home when talking with their friends, is one of the commonest of the eight types of nervousness. This is the purely natural result of inexperience. The very many girls who are exceedingly annoyed to find that they cannot be introduced to anybody without blushing or stammering or vainly trying to break a distressing silence, may be comforted by the assurance that ere many months are passed they will have become more accustomed to the very strange conditions imposed upon us by social usage and to abruptly starting a conversation with a person whom they have never seen before. To some girls it may be a relief to know that young men are very much more bashful, more inclined to blush, and find much greater difficulty in starting a conversation to the first person to whom they are introduced than girls do. The news will certainly be well received by all girls suffering from this form of nervousness that a very short space of time will see the end of their annoyance. The sixth division of nervousness, that condition in which girls are only nervous when talking to persons of the opposite sex, is only a mild form of the first and, like it, it is a very transitory state. The second class of nervous girls is that in which the members are nervous when talking to friends as well as to strangers. This is the most numerous class of all. This form of nervousness is sometimes due to indigestion or other derangements of health. It is to this class that we shall more especially refer when considering the treatment of nervousness. That form of nervousness in which the sufferer is perfectly at ease in the excitement of a crowded room but who cannot endure to talk with one person alone is a comparatively rare condition. It is typically met with in cases of nervous exhaustion. It is tolerably common in persons who have just recovered from some forms of depressing diseases.