Book Coverage Atlas

This atlas answers the practical research question: is each book actually represented in the archive, or is it only a shell? Each source below has a full section map with direct links into the public source text and the chapter workbench. The coverage remains a candidate layer until scan review promotes a passage, equation, figure, or interpretation into canonical form.

Corpus coverage

Every Processed Book, Opened Up

The archive currently exposes 394 processed Steinmetz sections across 15 seeded sources. Use this atlas when the site feels too broad: it shows what exists, where it lives, and what still needs review.

394

processed sections

lectures, chapters, sections, and report divisions

1,050,685

processed words

candidate text available through source readers

768

equation candidates

source-linked candidates awaiting scan verification

427

figure candidates

figure references plus promoted original crops

8

quote candidates

hidden-gem seeds and notable passages

Choose A Reading Door

Choose a guided routeEnter by purpose: first hour, source-only, AC math, transients, field language, diagrams, apparatus, or patents.Start with radiation and lightA readable first source: radiation, electric waves, spectrum, light, illumination, and original visual crops.Enter the AC mathematicsSymbolic method, complex quantities, impedance, reactance, admittance, harmonics, and transformers.Follow transients and surgesTemporary terms, oscillations, distributed lines, standing waves, traveling waves, and lightning-related behavior.Trace a concept insteadSearch across sources by terms such as ether, hysteresis, impedance, dielectricity, waves, and transients.

Source Maps

Radiation, Light and Illumination1909 - 13 sections - 86,387 words - 74 equation candidatesElementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients1911 - 10 sections - 32,133 words - 54 equation candidatesEngineering Mathematics: A Series of Lectures Delivered at Union College1911 - 6 sections - 54,448 words - 8 equation candidatesTheory and Calculation of Alternating Current Phenomena1916 - 37 sections - 109,539 words - 72 equation candidatesTheoretical Elements of Electrical Engineering1915 - 114 sections - 90,757 words - 56 equation candidatesTheory and Calculation of Transient Electric Phenomena and Oscillations1909 - 58 sections - 109,824 words - 101 equation candidatesGeneral Lectures on Electrical Engineering1908 - 17 sections - 61,815 words - 89 equation candidatesAmerica and the New Epoch1916 - 18 sections - 44,474 words - 16 equation candidatesTheory and Calculation of Electric Apparatus1917 - 22 sections - 118,262 words - 24 equation candidatesFour Lectures on Relativity and Space1923 - 4 sections - 39,381 words - 24 equation candidatesInvestigation of Some Trouble in the Generating System of the Commonwealth Edison Co.1919 - 5 sections - 17,784 words - 8 equation candidatesTheory and Calculation of Alternating Current Phenomena1897 - 30 sections - 76,757 words - 76 equation candidatesTheory and Calculation of Alternating Current Phenomena1900 - 32 sections - 91,217 words - 64 equation candidatesTheory and Calculation of Electric Circuits1917 - 18 sections - 83,211 words - 48 equation candidatesElementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients1914 - 10 sections - 34,696 words - 54 equation candidates

Complete Corpus Table

Source	Year	Sections	Words	Equations	Figures	Quotes	Top Themes
Radiation, Light and Illumination	1909	13	86,387	74	65	3	Radiation / light, Magnetism, Waves / transmission lines
Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients	1911	10	32,133	54	16	0	Transients / damping, Waves / transmission lines, Magnetism
Engineering Mathematics: A Series of Lectures Delivered at Union College	1911	6	54,448	8	9	0	Waves / transmission lines, Complex quantities, Impedance / reactance
Theory and Calculation of Alternating Current Phenomena	1916	37	109,539	72	116	0	Impedance / reactance, Waves / transmission lines, Magnetism
Theoretical Elements of Electrical Engineering	1915	114	90,757	56	10	0	Magnetism, Field language, Impedance / reactance
Theory and Calculation of Transient Electric Phenomena and Oscillations	1909	58	109,824	101	1	0	Waves / transmission lines, Transients / damping, Dielectricity / capacity
General Lectures on Electrical Engineering	1908	17	61,815	89	14	0	Radiation / light, Waves / transmission lines, Lightning / surges
America and the New Epoch	1916	18	44,474	16	0	0	Ether references, Field language, Dielectricity / capacity
Theory and Calculation of Electric Apparatus	1917	22	118,262	24	13	0	Magnetism, Field language, Radiation / light
Four Lectures on Relativity and Space	1923	4	39,381	24	19	0	Field language, Radiation / light, Waves / transmission lines
Investigation of Some Trouble in the Generating System of the Commonwealth Edison Co.	1919	5	17,784	8	1	5	Impedance / reactance, Radiation / light, Ether references
Theory and Calculation of Alternating Current Phenomena	1897	30	76,757	76	29	0	Impedance / reactance, Magnetism, Waves / transmission lines
Theory and Calculation of Alternating Current Phenomena	1900	32	91,217	64	79	0	Impedance / reactance, Magnetism, Waves / transmission lines
Theory and Calculation of Electric Circuits	1917	18	83,211	48	37	0	Magnetism, Impedance / reactance, Waves / transmission lines
Elementary Lectures on Electric Discharges, Waves and Impulses, and Other Transients	1914	10	34,696	54	18	0	Transients / damping, Waves / transmission lines, Magnetism

How To Use This Layer

Read the source first

Open a book coverage page, choose a section, then use the source-text link to read the candidate text before using any commentary.

Use the workbench second

The workbench joins concepts, glossary terms, equations, figures, quotes, themes, and source links for the same section.

Promote carefully

Interpretive and modern layers should be added only after the exact source location is checked against the scan or source PDF.