U. S. NATIONAL MUSEUM 



BULLETIN 198 Plate 2 



.del c. 



icicJ hv Greville 



a, Oliver Evans's "Orukter Amphibnlos," 1805. I'ihi.i 



Bathe. Photograph No. 31719-F. 



b, Steam vehicle of William Church, 1832. Photograph No. 31719-D. 



c, Benz gasoline-powered tricycle, 1885. British Crown copyright. From an exhibit in 



the Science Museum, London. Photograph No. 31714-E. 



