presentations would be staged in Quarryville Memorial Park on a large old flat bed trailer, today's answer to the Conestoga wagon. When the Southern Lancaster County Historical Society, Inc, was ap- proached, it decided to portray the Christiana Riot of 1851 as its presentation. Your president and editor

The Christiana Machine Company and the Status Revolution by Dr. Ferdinand L. Molz Recently the author presented in this Journal*a detailed ac- count of the origin and development of the Christiana Machine Com- pany in Christiana, Pennsylvania. The present article attempts to personalize that essay

Journal of the LANCASTER COUNTY HISTORICAL SOCIETY A History of the Christiana Machine Company, 1863-1920 by Ferdinand L. Molz with editorial assistance of Donald J. Summar ACKNOWLEDGEMENTS The writer wishes to thank all those persons whose assistance was invaluable in the preparation of this