Methodologies for staining and visualization of b-galactosidase in embryos and tissues / Siobhan Loughna and Deborah Henderson -- Immunohistochemical detection of beta-galactosidase or green fluorescence protein on tissue sections / Philip A. Seymour and Maike Sander -- Detection of reporter gene expression in murine airways / Maria Limberis, Peter Bell, and James M. Wilson -- Three-dimensional analysis of molecular signals with episcopic imaging techniques / Wolfgang J. Weninger and Timothy J. Mohun -- Fluorescent proteins for cell biology / George H. Patterson -- Detection of GFP during nervous system development in Drosophila melanogaster / Karin Edoff, James S. Dods, and Andrea H. Brand -- Autofluorescent proteins for flow cytometry / Charles G. Bailey and John E. J. Rasko -- Fluorescent protein reporter systems for single-cell measurements / Steven K. Dower, Eva E. Qwarnstrom, and Endre Kiss-Toth -- Subcellular imaging of cancer cells in live mice / Robert M. Hoffman -- Noninvasive imaging of molecular events with bioluminescent reporter genes in living subjects / Pritha Ray and Sanjiv Sam Gambhir -- Green fluorescent protein as a tracer in chimeric tissues / Harald Jockusch and Daniel Eberhard.