Larken (Edgar Lucien Larkin): Investigator site log (STEP I)

Run 2026-10-08 (first Investigator run; no earlier sites.md). Web time used: 9.5 minutes (570 s by date +%s, 1791515301 to 1791515871), stopped at the cap. Chrome used for Google, Google Books, CDNC, OpenSIUC, HathiTrust, Scientific American and IOPscience; archive.org, Wikipedia, IAPSOP and the biography pages fetched by curl to research/pages/ and grepped. Public-domain scans copied to research/files/ (13 PDFs: Larkin's Science and PASP articles 1881-1901, PASP 1902 report, Science 1906 critique, Hallock 1906, Progressive Thinker 1904). Note on the name: the author spells it Larkin; "Larken" (the folder name) also appears in an Altadena Historical Society caption.

Keywords tried

Google web: "Edgar Lucien Larkin" Lowe Observatory; "magnetic storm" "July 16, 1892" telegraph Boston Providence milli-amperes; site:opensiuc.lib.siu.edu "Larkin" "Open Court" Lowe Observatory; "Larkin" "Lowe Observatory" "stellar floor" OR "starless fields" OR "abyss" nebula; Birkeland 1896 aurora cathode rays from the sun terrella history; "Larkin" "Examiner" 1902 "radiant energy" Lowe corpuscles OR "magnetic storm"; "Larkin" "New Windsor" Illinois observatory astronomer 1880s; "Larkin" "Hallock" "Open Court" electricity "body of resurrection"; "Gigantic Abyss in the Great Nebula in Orion" Larkin 1910. Google Books: "magnetic storm" "July 16" 1892 Boston "milli-amperes"; "storm of July 16, 1892" telegraph "New York" Providence; "magnetic storm of unexampled severity" 1892. Internet Archive: creator:(Larkin, Edgar) OR creator:(Edgar Lucien Larkin) OR creator:(Larkin, Edgar Lucien); title:(electrical engineer) AND year:1892; title:(electrical engineer) AND volume:14; collection:jstor_publastrsocipaci AND volume:14 AND title:(general notes). CDNC: Larkin "radiant energy"; Larkin corpuscles (blocked). HathiTrust: author "Larkin, Edgar Lucien"; all fields Edgar Lucien Larkin. Not yet tried (next run): "Larken" spelling; "E. L. Larkin" + "earth currents"; "Larkin" + "Birkeland"; "Larkin" + "Tesla" + lecture; "Larkin" + "stellar floor" in Overland Monthly Sept 1902; "Baumgardt Publishing" 1903; "John D. Hooker" + Larkin; "William H. Knight" + Academy of Sciences; "Larkin" + "Southern California Academy of Sciences" Bulletin 1903; "Larkin" + "Knox College observatory"; "magnetic storm" 17 November 1882 telegraph; "aurora" 16 April 1882; Chronicling America "Lowe observatory" Larkin.

Leads for review

1. The inventor's own work

• Larkin, "Magnetic Storm, Aurora, and Sun-Spots", Science 20 (29 Jul 1892) 65-66, from Knox College Observatory: the 16 July 1892 storm reached the C. B. & Q. railroad telegraph office in Galesburg as "an electro-magnetic wave"; the energy "always appeared as a wave, beat, or oscillation"; links to Hertz; "telegrams have been sent by means of nature's electricity, without batteries"; a curving, "cyclonic" sunspot tongue was brightest 9.30-10.30 a.m., "at which time the electric wave disturbed the telegraphs"; causation left to "future physicists". Bears on claim 2 (the earliest form of the book's storm mechanism, with his own same-hour timing). [web: https://archive.org/details/jstor-1766041]
• Larkin's 1881 Science series ("Primeval Rotation and Cosmical Rings" II, "Primordial Cosmic Rings" III, "Ancient Planetary Rings" IV, "Disruption of Planetary Masses from the Primeval Nebula" V; also "Discrepancy in Recent Science"): the ring stage of the nebular hypothesis is "a physical error"; no known force could start rotation of a tenuous primeval sphere. Bears on claim 4: the 1903 electrical-induction answer (pp.286-290) solves a problem he posed in 1881. [web: archive.org jstor-2900594 etc.; PDFs in research/files/]
• Larkin's own report, PASP 14 (1902) 26: took charge of Lowe Observatory 1 Jan 1901; observed "the stellar floor" throughout 1901; "The entire background of Orion ... is either a complete nebula or an incredible number of excessively minute stellar points ... Orion is always bound in white"; a longer report was sent to the ASP but not printed. Bears on claim 5. [web: https://archive.org/details/jstor-40668215]
• Larkin's letter to Charles Hallock (Open Court c.1906; reprinted in Hallock, Luminous Bodies, 1906): "nothing exists but electricity ... our spiritual bodies are merely one phase of electricity ... I allude to 'refined' matter in my book 'Radiant Energy.'" Bears on claim 1 (his own reading of the corpuscle principle). [web: http://iapsop.com/ssoc/1906__hallock___luminous_bodies.pdf]
• Within the Mind Maze (1911): "nothing exists but electrons ... The universal, cosmical ether, if it exists, is beyond doubt nothing but electrons"; quotes J. J. Thomson on corpuscles. Claim 1, later form. [web: https://archive.org/details/withinmindmazeor00lark]
• The Matchless Altar of the Soul (1916): Larkin saw Tesla make "a long thin wire to glow and emit pure white light in a darkened room" (first-hand witness of a Tesla demonstration; date and place not given in the passage read). [web: https://archive.org/details/matchlessaltarof00larkrich]
• Other Larkin items to read: PASP 1901 Leonids report (book addendum original); Science 1892 "Meteoric Shower"; Scientific American 1909-1910 (Orion "abyss", "Signaling to Mars", "Motions of the Earth"); LA Herald 17 Feb 1903 lecture to the Southern California Academy of Sciences; Open Court July 1906 earthquake article.

2. Supporting information by others

• The earth-current figures in the book (p.134) agree with figures published independently in the electrical trade press for the storm of 16 July 1892: Electrical Engineer 14 (1892) p.79 ("A magnetic storm of unexampled severity ... Saturday, July 16, almost completely paralyzing the entire telegraphic service of the country"); Electricity (1893) p.157 (133 mA; 492 V New York-Boston); Terrestrial Magnetism (1904) p.24 (New York-Providence line disturbed). These corroborate the measurements Larkin printed (but correct their year). Bears on claim 2. [web: Google Books snippets, research/2026-10-08-google-books.md]
• Pre-publication reader: William H. Knight of Los Angeles "critically examined the work before publication"; the Southern California Academy of Sciences sponsored publication (J. D. Hooker). [web: LA Herald 5 Apr 1903, https://cdnc.ucr.edu/?a=d&d=LAH19030405.2.366.13]
• Larkin's same-night contrast test for the stellar floor is reported in PASP 1902 by the editor without comment; no independent observer found yet.

3. Closely related work

• Kristian Birkeland (1896 onward): aurora caused by cathode rays (corpuscles) from the sun, reproduced with a magnetised terrella in a vacuum tube. Shares Larkin's laboratory-aurora approach (claim 2, book pp.137-142) and the corpuscle vocabulary, but uses a particle stream where Larkin uses an EM wave. [web: https://en.wikipedia.org/wiki/Terrella; Lilensten et al. 2013, J. Space Weather Space Clim. swsc120039]
• Svante Arrhenius, "Ueber die Ursache der Nordlichter" (c.1900), reviewed in PASP 13 (1901) next to Larkin's note: aurora and comet tails from Maxwell radiation pressure on fine solar matter. A contemporary EM-theory explanation of the sun-aurora link that competes with Larkin's. [web: https://archive.org/details/jstor-40671408]
• H. L. Stetson and Charles Hallock (Open Court 1906), citing Oliver Lodge: matter is "nothing more nor less than electricity", extended to the resurrection body; same principle as Larkin's claim 1, used by others. [web: OpenSIUC article=1742; Hallock 1906]
• Barnard's Loop / extended Orion nebulosity [memory: high]: a real faint nebula around Orion that may correspond to Larkin's "Orion always bound in white" (claim 5). Lead for the reviewers to check.

4. Historical record

• Dates: Larkin's own report gives 1 Jan 1901 as the start of his directorship; AAAIM gives 11 Aug 1900 for his acceptance; Wikipedia, Altadena Historical Society and an NYT obituary snippet give 1890 (inconsistent with Swift's tenure to Dec 1900).
• New Windsor, Illinois private observatory with a 6-inch Clark from 1 Jan 1880; Knox College from 1888 (AAAIM 1998; Prabook). The Nov 1882 sunspot drawings were most likely made at New Windsor. Observing logs (Knox College archives) not located.
• Critic's characterization: "The Earthquake and Professor Larkin", Science 24 (10 Aug 1906) 178-180, signed D. S. J. (probably David Starr Jordan [memory: medium]), ridicules Larkin's Open Court report on the 1906 San Francisco earthquake (animal behaviour, sulphur-smelling fish, planetary alignment, blue flames at Petaluma). An institutional critic's view of Larkin as a popular writer ("University of the Sunday Supplement"); not a test of the book's claims. [web: https://archive.org/details/jstor-1632621]
• Reception: the book was reviewed by a non-scientist in the LA Herald (5 Apr 1903), bought by the San Jose public library (1905), advertised in the spiritualist Progressive Thinker (1906); USC's Nathan Masters (2020) describes Larkin as "among the most-read scientists of his time" (about 9,000 bylines) and fluent in Theosophy.

Corrections to earlier documents

1. claims.md (claim 2) and facts.json (main entry: summary, key_claims "On 16 July 1882 ...") give the earth-current storm as 16 July 1882. The evidence shows it is the storm of 16 July 1892: Larkin's own Science letter of 19 July 1892 (Saturday 16 July 1892); Electrical Engineer 14 (1892) p.79 and Electricity (1893) p.157 report the same New York-Boston (133 mA, 492 V) and New York-Providence measurements for 16 July 1892; 16 July 1882 was a Sunday. The book's heading (p.134) has the wrong year. The deep read (pp.124-142, sections 4 and 8) should note it. Its finding that the volts column implies about 3,700 ohms is confirmed by the 1893 figures (492 V / 0.133 A = 3,700 ohms), so the mismatch with the stated 2,700 ohms is in the published source as well.
2. Deep read pp.124-142, section 7: "The site is not named" for the Nov 1882 drawings. Probably New Windsor, Illinois (Larkin's private observatory, 6-inch Clark from 1880) [web: AAAIM; inference].
3. Any later document that dates Larkin's Lowe directorship to 1890 (as Wikipedia does) should use 1900 (appointed) / 1 Jan 1901 (assumed office, his own words in PASP 1902).