A crowd of pimps, gamblers, pickpockets, and "strong arm guys" attended a dance given on March 30, 1912.[96] Here a pimp named Daniel[97] deliberately struck his girl in the face with his fist. She fell to the floor and was carried to the dressing room covered with blood. The woman investigator, who had been a nurse, took charge of the girl and summoned a physician. A doctor[98] with an office in East 4th Street, sewed four stitches in the girl's lip and charged her five dollars, which was to include two future visits. The doctor offered the investigator fifteen dollars to help him with a case that night, and five dollars extra if she would accompany him to his room. Nor was this the only immoral solicitation that the woman investigator was subjected to in order to get the facts. A man who was shot to death not long ago, a "gun man," gave a dance on March 29, 1912, for his own benefit. It was a great event. "Three of the foremost gamblers were present," a man proudly declared, and, with equal pride further said that several madames of houses of prostitution and their inmates were there also. The program of this dance is a veritable directory of "gamblers," "gun men," "strong arm guys," pimps, doctors, lawyers, and politicians. Some of the names are very familiar. They made a motley crowd--all with mutual interests. Many in this remarkable gathering came together and paid large admission fees at the door because they feared the gambler who gave the dance. The occasions above described are not utilized only by hardened profligates: young girls, some perhaps innocent, others, if not entirely innocent, at any rate not yet wholly depraved, and young men not yet altogether vicious attend the gatherings in search of amusement and change. Some of the girls who frequent these public dance halls reveal their loose morals by their manners and actions, but many are innocent working girls who seek legitimate recreation. The sinister element is the pimp who attends with the coldblooded purpose of finding new subjects of debauchery and of subsequent exploitation for gain. These agents of commercialized vice are usually well-dressed, well-mannered, and introduce themselves politely and easily to strangers. They often pretend love at first sight and exhibit marked devotion, by which girls are deceived and to which they too often yield. Clever subterfuges are sometimes employed: a pretended drummer states that he has "sample shoes" or "sample dresses" at his room: "If they fit, they are yours," he says. When the seduction of the girls is accomplished, they are put on the street, and their ruin is complete. These "powers that prey" are a constant danger in public dance halls and find there easy quarry. The girls who refuse to be inveigled are often so ostracized that they must unbend, if they wish to participate in the fun. Dances and refreshments are withheld until the "wall-flower" comes round. Examples can be cited: a model who earns $18 a week, one-half