PROVIDENCE, R.I. (AP) _ Prostitution charges were dropped Thursday against a second Brown University student in return for her cooperation in bringing four more indictments against an insurance agent who allegedly ran a sex-for-hire ring.

Dana E. Smith, 21, of Avon, Conn., had been charged with nine felony counts ranging from soliciting for prostitution to violating the state's oral sex and sodomy law.

Prostitution charges against Rebecca Kidd of Orange, Conn., who was arrested in March with Miss Smith, were dropped in April after she also agreed to cooperate in the investigation of Stanley Henshaw III.

Police say Henshaw used college students, juveniles and others as prostitutes in a ring run from his condominium near the Ivy League school.

Miss Smith, who took a leave of absence from her senior year at Brown, had faced up to 59 years in prison and a $1,500 fine.

A Providence County grand jury Thursday indicted Henshaw, 43, on charges of soliciting another to commit a crime, pandering, conspiracy to commit pandering, and violating the oral sex and sodomy law.

He was indicted in April on four counts of coercing women into becoming prostitutes, five counts of conspiring to have women commit oral sex and sodomy, one count of maintaining a common nuisance, one count of possession of cocaine, and one count of possession of marijuana.

Henshaw is free on $5,000 surety bail. Reached by telephone at his home, Henshaw declined comment on the new charges and the dismissal of charges against Miss Smith.

Assistant Attorney General William Devereaux said investigators have identified about half of the 46 women in nude and semi-nude photographs seized during a search of Henshaw's condominium.

Devereaux said the state was not considering charging the women, but had spoken to several about their possible cooperation.