209 
HALL 54. 
STEAMBOAT AND STREET CAR. 
In the hall devoted to the Steamboat and the Street Car is a 
model of an Ohio river steam tow boat, with a large tow of coal 
barges; also a complete model of a Mississippi river steamer tow- 
ing a large raft of Minnesota logs, a method of timber transporta- 
tion rapidly passing away. 
At the opposite end of the hall stands the first grip-car ever 
run in passenger service. This was built under the direction of 
Mr. A. S. Hallidie, and used on the Clay Street Railroad of San 
Francisco, California, in the year 1872. Another holds specimens 
of steel used in the operation of cable and electric roads in Ger- 
many. 
On the walls of this hall are many pictures representing steam- 
boats and street cars of various countries, including steamboats on 
Lake Titicaca, Peru. This lake is the highest navigable body of 
water on the earth, and the steamboats which ply upon it are made 
in sections and transported up the mountains on the backs of 
mules. 
Case 1. — Model of a raft of logs on the Mississippi river be- 
ing towed by the stern-wheel steamboat “ Juniata.” The steam- 
boat is hitched to the raft bow on, and by means of guy-ropes run 
to the nearest corners of the tow, the steamboat is made to direct 
the course of the raft. The model of the steamboat is of metal. 
The model of the raft is made of white pine branches, cut in north- 
ern Wisconsin. Both boat and raft are constructed on X"i^ch 
scale. 
Model of a steam tow-boat, with a large tow of coal, represent- 
ing the method of transporting coal from Pittsburgh to New 
Orleans. The larger barges carry the freight, and the small ones 
the coal for steamer fuel. The steamer represented is 200 ft. long 
and 42 ft. wide, with cylinders 24 inches in diameter, and 12 ft. 
stroke of piston, and 7 boilers. The barges are each 130 ft. long, 
25 ft. wide, and 7J^ ft. deep, each carrying about 13,000 bushels of 
coal. The steamer and tow, when running, occupy a space of 
700 feet long and 150 feet wide. 
