A counseling hotline set-up by Dartmouth for concerned parents, students, faculty and alumni has received about a hundred calls.

Classes at the College are continuing normally, although Steinert said some professors have individually cancelled or postponed classes. Conselors met yesterday with the students in the Zantops' classes.

"We're trying as much as possible to continue on," Steinert said.

The college has expanded its escort service and increased campus security patrols, but McLaughlin said he would not urge stronger precautions without threats or some other basis for believing the killer planned to strike again.

"We have absolutely no basis to tell the community that, and it would be irresponsible," he said.

He added: "Obviously, our public safety objective is to solve this as soon as humanly possible."

Half Zantop taught earth sciences; Susanne Zantop was head of the German Studies Department and taught courses in comparative literature and women's studies.