Steele, John M2023-05-232023-05-2319932016-06-22https://repository.upenn.edu/handle/20.500.14332/42192The most salient omissions from the survey provided by the preceding articles are reviewed and ameliorated by referee to recent publications.Chen-Stein methodderandomizationexpander graphspercolation theorypseudorandom graphsrandom graphsStatistical MethodologyMissing Pieces, Derandomization and Concluding RemarksArticle