I've added Lesson 3 to the shared folder on Dropbox:

https://www.dropbox.com/sh/269mvashmwa81no/AACNH6r66fngEZrF9ejwaegsa?dl=0

If you want to download the file, hover your mouse over the file and look for the ellipsis "..." Click there and you'll see the Download option.

Cheers,
Mojo

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Morris Jones, Monrovia, CA
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Old Town Sidewalk Astronomers
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