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Case 10. — Experimental tlying machine driven by com- 
pressed air. The machine was built by Lawrence Hargrave, of 
Stanwell Park, New South Wales, who has built eighteen experi- 
mental and successful flying machines, of which this is No. 14. 
An experimental test was made with this machine on March 31, 
1892, and at a pressure of 250 pounds in the main tube, it flew 312 
feet in nineteen seconds. 
No. 11. — Models of double and single propellers for vessels; 
also, hull of tug boat. 
On the Walls are hung a series of drawings, photographs 
and prints of the first propulsion by steam on water. Photo- 
graphs of river, lake and ocean steamers, including relics of 
advertising posters in early days, form an interesting part of this 
exhibit. 
HALL 39. 
HUMAN BURTHEN BEARERS. 
In the collection of Human Burthen Bearers are found 
life-size figures and models illustrating the primitive methods of 
transportation from widely diversified sections of the world, dem- 
onstrating the slow progress made in the manner of transporting 
goods and the wonderful endurance shown by the people of these 
countries. 
Case 1. — Life-size figure representing street scenes in Con- 
stantinople, Turkey; street porters, transporting cases destined for 
the World’s Columbian Exposition. Fire sergeant and original oJ 
fire extinguisher, chair carriers, and sedan chair of a wealthy 
Turkish lady. Water, milk, and bread peddlers. 
Case 2. — Life-size figures of burthen bearers from South 
America. Indian carrying a Silla, or traveling chair, in which is 
seated an American on his Avay over the mountains to Bogota, the 
capital of Colombia. Two Indian Cargadores, male and female, 
transporting goods from Guayaquil to Quito, capital of Ecuador, 
