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Acknowledgements

Many thanks to ...

• Dr. Matt Sponheimer for kindly providing me with the full text of the Isbell and Young JHE paper, without which this work would not have been possible; also, for patiently answering my questions over Instant Messenger.
• Dr. Kevin Hunt for devoting a sizable chunk of his time to communicating with me over the phone.
• Dr. Steve Savage for taking time out of his work to answer my questions over the phone.
• Dr. Owen Lovejoy for pointing me to interesting and informative resources on the subject and thoughtfully answering my questions.

       

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