Dan Luke wrote:

*Scientific professional organization*, McNicoll, i. e., an
organization of science professionals. You know, people whose
careers are in the sciences. People who actually *do* science.

My assertion isn't wild, it's factual. The George C. Marshall
Institute is not a scientific professional organization, it is a
think tank. What are you going to offer next, the Heartland
Institute?

The GCMI is an organization, it has scientists on staff, thus it is a
scientific organization. If having political or government connections is
disqualifying then the list you provided is wiped out as well.

Gotcha!