The fourth book in the 'Marvelous But True' series about the discovery of the dinosaursThe fourth book in a series about scientific wonder. Dreaming, daring, thinking, and doing. For little researcher
The second book in the Marvelous But True series about oceanographic cartographer Marie Tharp!In the early part of the twentieth century, the researcher Marie Tharp worked on a detailed map of the bot
A book about dreaming, daring, thinking, and doing.Almost one hundred years ago, William Beebe and Otis Barton crawled into a tiny submarine to explore the depths of the sea. How did they come to inve
