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was ill-constructed so that it broke up, or caught fire, in mid-air, or if the night was very windy so that the paper dome tore, or the balloon was driven down by a squall, then fires were quite likely. Hill fires, and, worse, crop fires and fires burning houses, cattle sheds and other buildings as a result of hot air balloons are known to villagers in Sha Tin, Sha Tau Kok and Tuen Mun.
At present hot air balloons are still made, particularly by villagers in the North District, and the numbers of balloons is still high - the author saw seven in the sky within one hour during the 1986 Mid Autumn Festival and more than ten within one hour during the 1987 Festival.
The current generation of village elders, in their late 70s and early 80s, are unanimous that the current balloon construction and flying practices are identical with those they used in their youth (i.e. in the 1920s), and that the elders in their youth said that the practices when they were young (i.e. in the 1870s) were also the same. The elders specifically said that the rim of the balloon was stiffened with thin wire in their youth. The only changes are the switch from hemp cloth rags or kapok to cotton waste, and from peanut oil to diesel. The paper used for the balloon skin has changed a little as the older, coarser paper is not now available, and a shinier paper is now used. The elders all feel the modern paper is better, as the shine allows the paper to "slip through the air easier", but they are dubious about the switch to diesel: while easier to light, it does not give so clear a light, nor does it burn for so long. It would seem likely, however, that at some stage the balloons may well have been smaller, and used green bamboo shavings where the modern balloons use thin wire, but this is only a guess. At all events, the memories of the elders make it clear that balloons of the sort described above have been a widespread tradition in the New Territories for at least the last 100 years.
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Needham in his Science and Civilization in China refers to setting off hot air balloons as "an ancient sport" and a "pastime", and refers to cases in Fukien, Cambodia, and Yunnan. The Yunnan case is particularly interesting as it refers to activities by a certain minority tribe in Yunnan during the slack period between the planting and weeding of the rice and the harvest. The Mid Autumn Festival also falls in this same slack period, although, in the New Territories double harvest...