Some Parepistemes

Some parepistemes are pursued by small worldwide groups whose members all know each other, others involve vast communities which, to preserve their sanity, need to sub-classify themselves into numerous subsets. They all seem to share the feature, however, that they are not disciplines in the sense that I have analysed these... 

Stephen Keith, a historian of science, has examined the development of this parepisteme (Keith 1998), complete with the stops and starts caused by fierce competition between individuals and the discouragement of some of them, while a shorter account of the evolution of crystal-growing skill can be found in the first... 

In addition to the overarching role of the lUCr, there are numerous national crystallographic associations in various countries, some of them under the umbrella of bodies like the Institute of Physics in Britain. I doubt whether there is any other parepisteme so generously provided with professional assemblies all over the world. 

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