Report


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Historic McLennan County


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The Tiffanys of America


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Excerpt from The Tiffanys of America: History and Genealogy Craving your indulgence for the shortcomings which I fully appreciate are to be found in this volume, and hoping it will form the groundwork for a full and complete history of the Tiffany family, to be compiled by some later generation, I subscribe myself. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.







Rural Telephones


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History of Madison County, Iowa, and Its People


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Publisher's announcement of a forthcoming 2 volume history of Madison County, Iowa.







Bituminous Coal Commission


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Isolated and Cascade Airfoils with Prescribed Velocity Distribution


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An exact solution of the problem of designing an airfoil with a prescribed velocity distribution on the suction surface in a given uniform flow of an incompressible perfect liquid is obtained by replacing the boundary of the airfoil by vortices. By this device, a method of solution is developed, which is applicable both to isolated airfoils and to airfoils in cascade. The conformal transformation of the designed airfoil into a circle can then be obtained and the velocity distribution at any angle of attack computed. Numerical illustrations of the method are given for the airfoil in cascade.