2026-10-05 Google searches (results pages only)
Search-result snippets recorded where the target page was not opened. Snippets are leads, not read sources.
Heaviside 1902 "Encyclopaedia Britannica" telegraphy "upper air" conducting layer text: Encyclopedia.com Heaviside entry; Wikipedia Ionosphere (cites EB vol. 33, 10th ed., pp. 213-235, quote on p. 215); worldradiohistory.com "Radio's Conquest of Space" PDF (says the article was "published, December 19..." [snippet cut]); dokumen.pub "Signor Marconi's magic box". Led to the archive.org primary text."Heaviside" "bridge system" telephony 1887 Preece Arthur paper refused: Wikipedia; Grace's Guide (opened); Yavetz, The Work of Oliver Heaviside 1872-1889 (Springer, 2011; snippet: "Arthur Heaviside's bridge system made Oliver Heaviside focus specifically on the encounter between a pulse and a leakage point"); ResearchGate "Heaviside Equation A History" (2022); ODNB entry (snippet: "Heaviside's career reached a watershed in 1887"); Academia.edu copy of Bruton; IET Digital Library Mahon 2009 (snippet mentions a letter to Bethenod on why he refused the Hughes [medal]).IET Archives "Heaviside" papers collection notebooks "SC MSS": TNA Discovery (SC Mss 5, NRA 38781; also "letters (39) to G F [FitzGerald?]"); IET Archives blog (opened); IET Axiell catalogue; Royal Society 2018 theme issue intro citing "The Heaviside Collection: 1872-1923 (UK0108 SC MSS 005)"; AIM25 (blocked); a ResearchGate copy of Mahon citing "21 notebooks".site:iet.adlibhosting.com Heaviside Preece: ten catalogue records (see iet-archives notes).Heaviside "On Operators in Physical Mathematics" "Part III" referee Burnside Royal Society archive: deadreckonings.com PDF ("Volume 2 contains a modified version of the rejected Part III"); De Gruyter, Hunt, "Rigorous Discipline: Oliver Heaviside Versus the Mathematicians" (snippet: referred to William Burnside, Royal Naval College Greenwich); Lenhard 2025, "The most important thing: Wittgenstein, engineering, and ..." (Taylor & Francis; snippet mentions Burnside). The De Gruyter PDF did not open (click did not navigate); not retried.Royal Society archive catalogue referee report Heaviside operators 1894 Burnside RR: nothing from the Royal Society catalogue; Physics Today (opened). The referee report itself was not located: next run should search the Royal Society archive catalogue directly (catalogues.royalsociety.org, referee reports series RR).Kennelly 1902 "Electrical World and Engineer" "elevation of the electric-wave conducting strata" OR "upper atmosphere" Marconi: Kennelly, "On the Elevation of the Electrically-Conducting Strata of the Earth's Atmosphere", Electrical World and Engineer 39(11): 473, 15 March 1902 (cited by Wikipedia Ionosphere, Dellinger 1939 IRE, Green 1974 "Early history of the ionosphere", Richmond 2019 AGU). An ETHW PDF (ethw-images...ovh.us) appears to reproduce it. Not opened."BT Archives" Heaviside Preece 1887 telephony file OR catalogue: Bruton 2018 (opened); Elgar Online chapter "The Post Office and early wireless, 1882-1899" (BT Archives POST 30/631A); Academia.edu "From a Spark to a Flame: Wireless Telegraphy in the North-East" (snippet: "Inductive telegraphy and telephony 1885-1886: Preece and Heaviside"; sources IET, BT, Marconi archives); AIM25 BT Archives listing.