Dedicated James Joseph Sylvester author record for source-checked modern LaTeX working editions and continuation artifacts. The current public reader surface promotes Volume I through book page 410, with editable TeX, source-scan slices, and continuation notes preserved in the source packet.Status at a glance. [#####-----] Volume I source-checked working edition: book pages 1-410; [#########-] source witness preservation: source slices and page images are available for the covered range; [###-------] remaining volumes and later pages: staged for continued transcription.