Lotus wrote in message
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"Jim Webster" wrote in message
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Lotus wrote in message
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"Oz" wrote in message
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Or is that too simple?

Yup, Purdey's hypothesis' are very convincing. See;
http://www.purdeyenvironment.com/Med%20Hyp%202nd.htm

only if you don't actually look at the facts.

Specifically?

A lot of work has been done since Mark Purdey put forward his
hypothesis
and he has rather been left behind in a lot of areas.

Such as?

do your homework,
read something more up to date.

try (http://www.pubmedcentral.gov/).

--
Jim Webster

"The pasture of stupidity is unwholesome to mankind"

'Abd-ar-Rahman b. Muhammad b. Khaldun al-Hadrami'