Even before 1880, half the ice sold in New York, Philadelphia, and Baltimore, and one-third of that sold in Boston and Chicago, went to families for their own use.

• 到1880年以前，已经有半数在纽约、费城和巴尔的摩销售的冰，三分之一在波士顿和芝加哥销售的冰开始进入家庭使用。