The Bobbsey Twins in a Great City

Nan was a tall and slender girl, with a dark face and red cheeks. Her eyes were a deep brown and so were the curls that clustered around her head.

Bert was indeed a twin, not only because he was the same age as Nan, but because he looked so very much like her. To be sure, he looked like a boy, while she looked like a girl, but he had the same dark complexion, the same brown eyes and hair, and his voice was very much the same, only stronger.