On April 24th, UC Berkeley Professor Chi Wang brought his EPS 50 geology class to the garden as part of a tour of Bay area geology. He met with his students at the 30' blue schist outcropping in the lower part of the garden. They discussed the index minerals that are found in the large rock: Lawsonite and Glauconite. Lawsonite is named for UC Geology Professor Andrew Lawson (1861-1952), although it was actually discovered by one of his students, who named the mineral in his honor. Course desciption for EPS 50: An introduction to the physical and chemical processes that have shaped the earth through time, with emphasis on the theory of plate tectonics. Laboratory work will involve the practical study of minerals, rocks, and geologic maps and exercises on geological processes.