SECTION OF TRANSPORTATION AND ENGINEERING 109 



The largest and most important accession of the year was received 

 from the Baltimore and Ohio Railroad Company, through the kindness 

 of President Spencer and Col. James Eandolph, consulting engineer ; 

 this deposit consisted of a series of ten models, among them being — 



A model (half size) of Peter Cooper's experimental locomotive 

 "Tom Thumb." This locomotive was experimented with on the Balti- 

 more and Ohio Railroad on August 28, 1830, near Baltimore. The tubes 

 in the boiler were made of gun barrels. 



A model of the horse-power treadmill car, experimented with on the 

 Baltimore and Ohio Railroad in 1830. 



A model of a sail car, experimented with in the summer of 1830 on 

 the Baltimore and Ohio Railroad near Baltimore. 



A model (half size) of the Grasshopper locomotive "Arabian." Lo- 

 comotives of this type Avere introduced on the Baltimore and Ohio Rail- 

 road in 1831, and were in use for many years. 



A model of the passenger car designed by Peter Cooper for the Bal- 

 timore and Ohio Railroad Company in 1830. 



A model of a passenger " stage-body" coach, in use on the Baltimore 

 and Ohio Railroad in 1830, and for several years after it was opened for 

 traffic. 



A model of the closed passenger coaches on the Baltimore and Ohio 

 Railroad, which were first put in use in 1831. 



Among the relics illustrating progress in the art of track building 

 the following may be noted: An original cast tram rail, from the track 

 from Penydarren Works to Glamorgan Canal, near Aberdare Junction, 

 Wales, upon which Trevithick's first locomotive, to help man, ran in 

 1804. Gift of J. W. Widdowson, of London, England. 



An original long stone sill and strap rail, from Baltimore and Ohio 

 Railroad. Laid in 1829. Gift of Col. James Randolph, consulting 

 engineer, Baltimore and Ohio Railroad Company. 



An original stone block and section of rail and joint from the Camden 

 and Amboy Railroad, laid in 1831. Gift of the curator. 



A model of the track of the Baltimore and Ohio Railroad with A rail, 

 several miles of which were built by that company, 1844-'4:5. Depos- 

 ited by the Baltimore and Ohio Railroad Company. 



Pennsylvania Railroad standard, 1888 (model), showing standard 

 track, with stone ballast, angle splice-bars, ditches, etc. Gift of the 

 Pennsylvania Railroad Company, through Joseph T. Richards, assist- 

 ant chief engineer. 



The following important accessions illustrating improvements in the 

 appliances for marine propulsion were also received : Original patent) 

 granted to John Fitch, of Philadelphia, Pennsylvania, by Louis XVI, 

 King of France, l!^ovember 29, 1791, for his inventions for propelling 

 boats by steam. This, the original document, was discovered at the 

 destruction of the Libraire Rationale by the Commune in 1873. It' is 

 the gift of John C. Lang, Washington, District of Columbia. 



