A human skeleton that found yesterday in a vacant lot in the Olney Mill subdivision was tentatively identified as the remains of an 81 year-old-Chinese woman who had been missing from her home since July 31, Montogomery County Police reported.

The skeleton was discovered between rows of bushes shortly before 3 p.m. by a construction worker at 18556 Queen Elizabeth Dr. police said.

They said a pale green dress and black shoes found on the skeleton matched those which the missing woman, Chi Chen Kou, was last seen in when she disappeared from her home at 18544 Queen Elizabeth Dr.

Police said the woman took in the morning mail on July 31, then apparently wandered away from her home where she lived with her son Samuel and his family.

County police, aided by search dogs, searched the woods and fields around the subdivision for three days after the woman was reported missing by her son.

Kou, who had offered a $2,000 reward for anyone who could locate his mother, said his mother had moved here two years ago from China following the death of her husband and understood no English.

The skeleton was taken yesterday to the State Medical Examiner's Office in Baltimore for positive identification and a determination of the cause of death.