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When President Thomas Jefferson bought the Louisiana Territory from cash-strapped France in 1803, he doubled the size of the United States without really knowing what he was getting. He dispatched Meriwether Lewis and William Clark and their Corps of Discovery to explore a territory that would include part or all of fifteen future states and to seek a water route to the West Coast. Westward expansion began immediately, all for the bargain price of 15 million dollars. This book richly explores this fascinating part of history.

Febrero de 1808. Las tropas francesas llevan acantonadas en España. Se respiran aires inciertos y nadie sabe cuáles son las verdaderas intenciones de Napoleón. Cuando Franz Giesler, partícipa de una conspiración que mantiene en jaque al Imperio francés, aparece cruelmente asesinado, su hijo emprende un largo y peligroso viaje a través del país en guerra. El rastro de su padre le sumergirá en una trama de proporciones insospechadas, un complejo mecanismo de relojería cuyo eje, un terrible secreto, podría hacer tambalear el futuro de Europa. A lo largo de su búsqueda, desde la...

Storms are a fascinating topic and a great way to get young readers interested in science. This series uses simple text and dramatic, full-color photos to take students inside nature's powerful and deadly storms. Each book explains one kind of storm- what it looks like, how it forms, the damage it can do, and how people can protect themselves from danger.

Describes The Physical Characteristics, Behavior, And Metamorphosis Of Insects, And Insects In Your Garden, Backyard And In Your Home.