Fogg False Alarm

Smoke from a librarian's pipe caused the evacuation of the Fogg Art Museum yesterday morning, Laurence J. Dougherty, superintendant at the museum, said yesterday.

The fire department arrived a few minutes later, and, after determining the source and harmlessness of the alarm, let the museum personnel re-enter the museum.

Everything was back to normal ten minutes after the alarm sounded, Dougherty said. Personnel had smoked in the lounge for three years without incident, he added. Dougherty said the firemen, who cleaned and readjusted the detector for higher smoke tolerance, told him the device malfunctioned.