A collection of papers related to environmental scanning electron microscopy and gaseous detection (just join and add) includes variable pressure (VP) mode, VP-SEM, LV-SEM, ESEM-EDS, & X-ray Skirts. ================================= For an introduction to ESEM applications see: Doehne, E. "ESEM Applications: From Cultural Heritage Conservation to Nano-Behaviour." Microchimica Acta. For ESEM theory see: Thiel, B. L. "Imaging and Microanalysis in Environmental Scanning Electron Microscopy." Microchimica Acta.