carrying out manual operations and a third which shows some of the tools and instruments. The brief account which follows is based upon conversations with Wallace Clark of Ghicago and upon still and moving pictures which he took at a large factory in French Indo-China in January, 1939.

The tubes for the firecrackers are rolled and cut to length in outlying villages, and are brought to the factory for loading.

Figure 38. Crimping the Back Ends of the Tubes. (Courtesy Wallace Clark.)

They are tied in hexagonal bundles, Figure 37, each containing 1006 tubes. Since the twine tied tightly around the bundle crushes the 6 tubes at the corners of the hexagon, and since these are discarded, each bundle contains tubes for 1000 finished crackers.

The back ends of the crackers are then crimped; Figure 38. A bamboo stick is placed against the end of the tube and is

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