---
title: "The July 1936 Bell System Technical Journal published a cardiac-injury study, 'Effect of Electric Shock on the Heart'"
type: "claim"
status: "seedling"
audit_status: "capture-verified"
date_created: "2026-07-09T00:00:00.000Z"
provenance: "Promotion from 10-inbox/raw/2026-07-09-hop-bell-labs-cpr-accident.md, 2026-07-09"
origin: "batch"
derived_from: ["10-inbox/raw/2026-07-09-hop-bell-labs-cpr-accident.md"]
source_url: "https://onlinelibrary.wiley.com/doi/abs/10.1002/j.1538-7305.1936.tb03562.x"
source_title: "Effect of Electric Shock on the Heart*"
source_author: "L. P. Ferris, B. G. King, P. W. Spence, H. B. Williams"
source_date: "1936-07"
source_quote: "Ferris, L. P., King, B. G., Spence, P. W., and Williams, H. B., 'Effect of Electric Shock on the Heart,' Bell System Technical Journal 15(3):455–468 (July 1936), DOI 10.1002/j.1538-7305.1936.tb03562.x"
source_tier: 1
related_notes: ["claim-voiceband-distortion-barrier-capped-data-at-2400-bps","claim-lucky-1965-adaptive-equalizer-steepest-descent-transversal-filter","claim-telegraphists-cramp-1890s-classified-as-occupational-neurosis","claim-ferris-1936-bstj-text-is-digest-of-electrical-engineering-paper","claim-ferris-1936-experiments-seven-species-columbia-physiology-led"]
tags: ["bell-labs","history-of-medicine","electrical-safety","cardiology","cross-domain-bridge","hop"]
audits: ["2026-07-09 claude-opus-4-8"]
drafted_in: ["2026-07-13-weight-of-the-paddles","weight-of-the-paddles"]
audit_status_update_2026-07-28: "Full text located and read directly (Internet Archive bstj15-3-455, open, no paywall workaround needed) — the 'unverified against the primary' gap noted in this note's body is closed. See [[claim-ferris-1936-bstj-text-is-digest-of-electrical-engineering-paper]] (the BSTJ text is a digest of a paper first published in Electrical Engineering, May 1936), [[claim-ferris-1936-experiments-seven-species-columbia-physiology-led]] (confirms original animal experiments, Columbia-physiology-led, resolving H. B. Williams's role), [[claim-ferris-1936-0-1-ampere-60hz-danger-threshold-for-man]], [[claim-ferris-1936-counter-shock-recovered-60-percent-of-fibrillating-sheep]], and [[claim-ferris-1936-priority-credited-to-prevost-battelli-1899-not-kouwenhoven]]. This note stays narrow and bibliographic by design; the content claims now live in those five notes rather than being folded back into this one."
---


The *Bell System Technical Journal* — the in-house engineering journal of the
American telephone monopoly, better known for papers on transmission lines,
[[claim-voiceband-distortion-barrier-capped-data-at-2400-bps|voiceband channels]],
and, decades later, [[claim-lucky-1965-adaptive-equalizer-steepest-descent-transversal-filter|adaptive equalizers]]
— carried in its July 1936 issue a paper titled "Effect of Electric Shock on the
Heart," by L. P. Ferris, B. G. King, P. W. Spence, and H. B. Williams (vol. 15,
no. 3, pp. 455–468). The bibliographic record is confirmed through the Wiley
Online Library catalog (DOI 10.1002/j.1538-7305.1936.tb03562.x).

The paper belongs to a run of BSTJ work on the electrical injury of utility
workers — the telephone and power industries funded research into shock
thresholds because their linemen were being electrocuted. That a study of how
current disrupts the heartbeat appeared in a telephone-engineering trade journal,
rather than a medical one, is the surprising fact: the venue's ordinary business
(keeping current safe around workers) put it upstream of cardiac electrophysiology.
The same electrocution-safety research program ran on through Johns Hopkins and
produced the defibrillator
([[claim-kouwenhoven-electrocution-research-produced-defibrillator]]), and one
hop further, chest-compression CPR
([[claim-chest-compression-cpr-discovered-by-accident]]).

The claim here is deliberately narrow — that a paper with this title, authorship,
and venue exists and concerns electric shock and the heart. The full text was
behind the Wiley paywall (HTTP 402) and not read at capture time; it has since
been located in the open (Internet Archive) and read in full, closing what this
note originally left open — see the 2026-07-28 audit-status update above and
[[question-verify-bstj-1936-electric-shock-heart-fulltext]], now answered.

> [!note] Seek's commentary:
> This sits with [[claim-telegraphists-cramp-1890s-classified-as-occupational-neurosis|telegraphist's cramp]]
> in a small cluster where a communications technology's occupational-safety
> problem turns into a chapter of medical history. The Tier-1 label is honest but
> narrow: it certifies the *citation*, not the contents. — Seek