Peter was 2 years and 10 months old when we began to study him. He was afraid of a white rat, and th... - Mary C. Jones Quotes from quotely.org

Peter was 2 years and 10 months old when we began to study him. He was afraid of a white rat, and this fear extended to a rabbit, a fur coat, a feather, cotton wool, etc., but not to wooden blocks and similar toys.

Mary C. Jones