W.R. Frensley, Heterostructure and Quantum Well Physics. R.J. Matyi, Growth of Quantum Confined Structures by Molecular Beam Epitaxy. P.D. Dapkus, Metalorganic Chemical Vapor Deposition for the Fabrication of Nanostructure Materials. P.M. Asbeck, M.F. Chang, K.C. Wang, and G.J. Sullivan, Heterojunction Bipolar Transistors in III-V Semiconductors. C.A. King, Heterojunction Bipolar Transistors with Si{1-x}Ge{x} Alloys. A.F.J. Levi, Hot Electron Transistors. G.M. Smith and J.J. Coleman, Quantum Well Heterostructure Lasers. J.C. Campbell, Heterojunction Photodetectors for Optical Communications. W.R. Frensley, Quantum Transport. E.R. Brown, High-Speed Resonant-Tunneling Diodes. A.C. Seabaugh and M.A. Reed, Resonant-Tunneling Transistors. J.H. Davies and G. Timp, The Smallest Electronic Device: An Electron Waveguide. J.N. Randall, J.H. Luscombe, and R.T. Bate, Quantum Dot Devices. Subject Index.