I received this email today:
Congratulations on your nomination and initiation into Sigma Xi, The Scientific Research Honor Society! More information about your membership will be sent to your email soon.
If you have any questions concerning Sigma Xi, please do not hesitate to contact the Society’s Membership Office by calling 919-549-4691.
Once again, congratulations and welcome to Sigma Xi.
Sigma Xi Membership and Chapter Services
And this arrived today: