On back of the photograph: "Picture taken on lawn of J. R. Welch home, 253 South Eigth Street San Jose, where a concrete building of State College now stands. Right: Camellia Blanche Marsh, Mrs. Artus Metzger and sister of Mrs. J. R. Welch....
Scientific apparatus and instruments; Santa Clara University (Calif.)
""The hydraulic press depends on Pascal's principle: The pressure throughout a closed system is constant. At one end of the system is a small area piston driven by a lever to increase the mechanical advantage. The small-diameter tubing...
