Okay, here's the book's exact excerpt:
(March 1972)
"...Mad Bear was in L.A. when he called me...he'd been thinkin' about going to Washington, D.C.---he's back from that way, you know, from the Iroquois Nation. He belongs to the Tuscarora Tribe---someone from the White House sent him a request to look over some of those moon rocks, but he hasn't answered yet. The government's shook up about some of those rocks they brought back from the moon because they're increasing in size and they've got no explanation. They've got them on display in a museum and they're growing just like living things, They're like a lot of sick people who wouldn't think of talking to a medicine man until they're almost dead, and then they'll try anything...there's been many a time they've been worried enough to call for help...", pages 229-230, ROLLING THUNDER by Doug Boyd, a DELTA BOOK, published by DELL Publishing Co, copyright 1974 by Robert Briggs Associates.