Cloning this repository:

git clone git://gitorious.org/robmyers/art_and_mathematics.git art_and_mathematics
cd art_and_mathematics

Add this repository as a remote to an existing local repository:

git remote add art_and_mathematics git://gitorious.org/robmyers/art_and_mathematics.git
git fetch art_and_mathematics
git checkout -b my-local-tracking-branch art_and_mathematics/master_or_other_branch