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Thanks for the info. I like the eosscan.io page but I notice on the page that there are already eth contributions for the later periods. How can that be when the later period are not due to open?

I see that you can purchase ahead of time.

https://eos.io/

Click the "Get eos" button and then click on all the tick box's, which means that they can get away with anything and you have absolutely no recourse. Anyway, on the next page, at the bottom, you will see the header "Advanced Participation". It looks like you need the command line usage (provided there) for doing this?