I am thinking that lemons are the only citrus you can root from cuttings.

I would just stick them in a good moist medium and set them out of the sun. Don't let them dry out, not even once.

You can always try the propagation chamber.

Also, have you tried any Dip 'n' Grow liquid hormone? You can mix it to various strengths. Just a thought.

Another thought is to ask George. He knows everything!

Janie

Here is a link that might be useful: Easy Propagation Chamber

If you can get more cuttings sterilize them with dilute bleach and then try the propagation chamber that little_dani suggested.

I had a course in citrus in graduate school and, except for your amusement, citrus should probably not be rooted but rather grafted onto bitter rootstock. As someone noted lemon might be rooted and grown to satisfaction but it usually isn't done that way.