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position of their ancestral hall into which the dragon of the hill behind is 'crashing' all the time.
By way of summing up, we may say that social and economic differentiation is projected on the natural surroundings. The phenomena of nature in their symbolic aspect project back the image of differentiation in the form of rational models concepts of systems of natural influences affecting man and social life. These models can be manipulated by their constructors. They also carry messages that can be communicated between individuals and between groups.
NOTES
1 For a somewhat fuller description of the two villages, see Aijmer 1967. Big Stream Village (Dashuikeng) and Plum Grove Village (Meizilin) are in Hong Kong known under the Cantonese designations 'Tai Shui Hang' and 'Mui Tsz Lam'. Grass Field Village (Maoping) is 'Mau Ping'. They can be located with the help of Gazetteer 1960. Standard Chinese is given in pinyin form. Field work was financed by six Swedish funds; I gratefully acknowledge their support. Thanks are due to Mr. James Hayes, Hong Kong, and my wife for comments.
2 Freedman 1966, 118f; 1967; Baker 1965.
3 An alternative to, or perhaps rather a facet of, manipulating was fleeing. Examples of how people broke away from localities considered having bad fengshui have been given by Hayes (1963; 1967).
4 It may be of interest to point out that nets are instrumental in exorcistic ceremonies, when malevolent spirits may be caught or scared away with fishnets. I have this from a Buddhist monk whom I interviewed in Macau in 1965.
5 Census 1911, 103:27.
6 The sources classify Plum Grove land as third class land whereas Big Stream land is rated as second class. In the former place farming is done on terraced fields only.
7 In Plum Grove Village 35 houses were registered in 1906. If we compare this with the population figure of the Census of 1911, we will find that, if in use, each house unit was inhabited by 1.7 persons. This is an amazingly low figure, as we would have expected something around five or more as an average. Even if we allow for the ten men mentioned below, the figure would increase to just about two. The implication of these facts must be a reduction in population, perhaps by way of a lineage segment breaking away to settle elsewhere. In Big Stream Village 77 houses gave shelter to average families of 2.2 persons. Not even male absenteeism, discussed later, can explain this low figure to satisfaction.
* Information obtained from the District Demarcation Maps and the 'New Territories Crown Leases of District No. 188' of 1906 and the 'New Territories Crown Leases of District No. 196' of the same year, to be seen at the Tai Po District Office, New Territories, Hong Kong.