2026-10-09 HathiTrust

Scripted access refused (HTTP 403, Cloudflare). In Chrome: catalog search "Atombau und Spektrallinien" (all fields) gave 16 records; a cookie banner appeared and was left untouched (no consent given). Records read from the page DOM.

• German editions listed: 1921, 1922, 1924, 1931, 1939 (limited), 1944 (limited), 1951, 1960. Records 006573133, 006600621, 006573132, 001987688 hold the 1921/1922/1924-era items ("Multiple Items").
• Record 006600621 (https://catalog.hathitrust.org/Record/006600621) has three Full view copies: uc1.$b100199 (University of California), hvd.32044012231692 (Harvard), mdp.39015067963390 (Michigan) [web]. From the order of the result list it is most likely the 1922 third edition, i.e. the German original of the project's translation; the edition field did not render and this needs confirming.
• Use: a reviewer can check the misprints that claims.md lists ("Whether these appear in the German original was not checked") and the Note 13 / Note 17 numbers against the German text. Priority 1.

Not reached: confirming the edition of each record; downloading (HathiTrust full-PDF download for non-members is page by page).