Multiple SVN Repos Inside A Git Repo

Using git-svn, it is possible to have different parts of a git repo correspond to a specific svn repo? From my understanding after reading the documentation, you need one git repository per svn. My example is that I'm trying to set up a git repo to version control everything from my classes, but each class has a separate svn repo. Also, the number of git repos I can create is limited, and I'd rather not clutter everything up with many separate git-svn repos.

Example structure:

class/ .......... systems/ .......... algorithms/ .......... physics/

class is one central git repository, and systems, algorithms, and physics contain data from three svn repositories. Ideally, you could commit/update to/from each svn repo individually, or all at once.

Tim