The Apollo 17 built upon all the other missions scientifically. We had a lunar rover, we were able to cover more ground than most of the other missions. We stayed there a little bit longer. We were to have more challenging unique area in the mountains to learn something about the history and the origin of the moon itself. The lunar rover was a tremendous asset. One of the things that we knew was going to give us a problem was the lunar dust of soil, very fine, almost like graphite. We would throw it up when you drove the rover, would throw up like a rooster tail. That was bad and I was working around that rover, had a habit of putting my rock camera in a pocket, leaned over and ripped one of the fenders on. But we had to fix it because otherwise the rooster tail of dust would really, really be bad. The bottom line came up with a fix where we took some geology maps and taped them together in a spacecraft with of all things duct tape and then took a couple clamps from lights we had in the lunar module and clamped them to what was left of the fender and it stopped the dust. It did the job. It was a little human intervention on a positive side after we had a little bit of a problem.