(Paperback)

"Did you know that every year hundreds of thousands of monarch butterflies migrate 2,500 miles to Mexico for the winter It takes four generations of butterflies to make the trip, and only the fourth generation lives longer than three weeks. Find out all of this and more in this new book on butterflies!"--

(Paperback)

(Hardback)

Original publication and copyright date: 1933.

(Paperback)

A portrait of the engineer who invented the Ferris wheel describes the ambitious ideas that inspired him to build the largest wheel in the world for the Chicago World's Fair in 1893.