Cosmic Worlds and Forces for Professionals

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In the United States of America, and possibly other nations, this work is in the public domain. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.

As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, and the like. However, scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public.

Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. This work is in the public domain in the United States of America, and possibly other nations. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, and the like. However, we believe that this work is important enough to be preserved, reproduced, and made generally available to the public.

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