National Geographic printed the photograph of Lehman Caves upside down! Compare original with flipped image. The giveaway is the drips going up! This is an enlargement: _______________________________________ An autographed copy of my book is available in the GCHS Library, as I mailed a hard cover to the GCHS Librarian. I invite you to read this inspirational book of science. Michael McCartney, D.D.S, said "It should be required reading for every high school student." John Orosz, M.D., said "Wow, beyond incredible! Required reading for every literate person."