[Evolution] How to find a deb package for Evolution 3.10 for Mint 16

[Chris Haynes <chris harvington org uk>]

I've just started using Mint 16. The only version of Evolution
apparently available in their repository is 3.11.3, which comes with a (
(needed) health warning from the Evolution developers, who recommend
using version 3.10.

I've spend several hours trying to find a 'deb' package for Evolution
3.10. I can see that Ubuntu 'trusty' have packaged this version, but I
can't find a URI for the 'trusty' repository.

Can anyone tell me where I can get a binary of Evolution 3.10?

TIA

Chris