Guinea pig pancreatic slice in vitro LMAR 3 min pulseJamieson, James D10/24/19623.25 in. x 4 in. Lantern SlidesOriginal Magnification: x1,750Pulse chase experiments, Jamieson and Palade, 1967. Defining compartments involved in intracellular transport of newly synthesized proteins in guinea pig pancreatic slices in vitro.still image