| Summary: | The 1893 Duryea automobile in the Museum of History and Technology, by Don H. Berkebile -- The Borghesi astronomical clock in the Museum of History and Technology, by Silvio A. Bedini -- The engineering contributions of Wendel Bollman, by Robert M. Vogel -- Screw-thread cutting by the master-screw method since 1480, by Edwin A. Battison -- The earliest electromagnetic instruments, by Robert A. Chipman -- Fulton's "steam battery" blockship and catamaran, by Howard I. Chapelle -- History of phosphorus, by Eduard Farber -- Tunnel engineering, a museum treatment, by Robert M. Vogel -- The "Pioneer": light passenger locomotive of 1851 in the Museum of History and Technology, by John H. White -- History of the Division of Medical Sciences, by Sami Hamarneh -- Development of gravity pendulums in the 19th century, by Victor F. Lenzen and Robert P. Multhauf.
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