Transcriber's Notes This volume was compiled from 11 Papers from The Smithsonian Intitute's Bulletin 240 CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY: which were previously published on Project Gutenberg: Paper 34 == The 1893 Duryea Automobile In the Museum of History and Technology, by Don H. Berkebile Paper 35 == The Borghesi Astronomical Clock in the Museum of History and Technology, by Silvio A. Bedini Paper 36 == The Engineering Contributions of Wendel Bollman, by Robert M. Vogel Paper 37 == Screw-Thread Cutting by the Master-Screw Method since 1480, by Edwin A. Battison Paper 38 == The Earliest Electromagnetic Instruments, by Robert A. Chipman Paper 39 == Fulton's "Steam Battery": Blockship and Catamaran, by Howard I. Chapelle Paper 40 == History of Phosphorus, by Eduard Farber Paper 41 == Tunnel Engineering: A Museum Treatment - Robert M. Vogel Paper 42 == The 'Pioneer': Light Passenger Locomotive of 1851, by John H. White Paper 43 == History of the Division of Medical Sciences, by Sami Khalaf Hamarneh Paper 44 == Development of Gravity Pendulums in the 19th Century, by Victor Fritz Lenzen and Robert P. Multhauf The following applies to all of the Papers: Italic emphasis denoted as _Text_. Bold emphasis as =Text=. Whole numbers and fractions: shown as 1-1/2, 3-1/4, etc. Superscripts are ^{3} and subscripts are _{4} unless otherwise noted. All footnotes and any list of corrections were placed at the end of each individual Paper. Numerous minor typographical error were corrected. All obvious typographical errors corrected. Formatting inconsistancies and spelling were standardized. Paragraphs split by illustrations were rejoined. * * * * * CONTRIBUTIONS FROM THE MUSEUM OF HISTORY AND TECHNOLOGY: PAPER 34 THE 1893 DURYEA AUTOMOBILE IN THE MUSEUM OF HISTORY AND TECHNOLOGY _Don H. Berkebile_ EARLY AUTOMOTIVE EXPERIENCE 5 CONSTRUCTION BEGINS 6 DESCRIPTION OF THE AUTOMOBILE 16 [Illustration: FIGURE 1.--DURYEA AUTOMOBILE in the Museum of History and Technology, from an 1897 photograph. The gear-sprockets were already missing when this was taken, and the chain lies loosely on the pinion. Shown at the right, the Duryea vehicle following the recent restoration (Smithsonian photo 34183).] _Don H. Berkebile_ The 1893 Duryea Automobile _In the Museum of History and Technology_