Maxwell's Electromagnetic Theory Lost Key Elements When Scaffolding Removed by Later Physicists

The paper reconstructs from originals how Maxwell incorporated Ampère's template traces as scaffolding for his equations, then documents successive removals by Heaviside, Hertz and others who argued the constructs were dispensable. Recovery occurred piecemeal through Lorentz and later field theorists who reintroduced displacement concepts to match experimental propagation speeds. Evidence is drawn from direct comparison of 1860s manuscripts against 1880s published treatises.

This history matters because the excised elements affected how displacement current and vector potential were taught, creating persistent textbook mismatches with Maxwell's measured results. The work connects to broader patterns in which auxiliary hypotheses are stripped for parsimony yet later prove necessary for predictive accuracy, as seen in ether models and early quantum scaffolding.

Mendoza Urán flags what Maxwell himself overlooked in Ampère's construction, suggesting the template was not fully recognized as structural. Future archival work on unpublished correspondence could strengthen the chain of transmission claims.

Next steps include targeted re-examination of 19th-century laboratory notebooks to test whether the recovered elements align with contemporaneous measurement protocols.