Browse Items By "Subjects" (188 Headings)

A

Accidents, fires, explosions (43)

Acoustic telegraphy (200)

Agriculture (99)

Alternating current (271)

Arc lighting (269)

Archaelogy (7)

Architecture (43)

Astronomy (86)

Automatic telegraphy (631)

Automobiles and trucks

Aviation (24)

Awards & honors/clubs & societies (456)

B

Banking and bankers (185)

Biology (83)

Briquettes and bricker machinery (37)

C

Cables, feeders, and other exterior elements (732)

Carbon, coal, glass, ceramics (861)

Celebrations (anniversaries, birthdays, holidays) (46)

Cellulose, resins, and related products (568)

Cement (5)

Cement products (2)

Central stations (4132)

Chemicals, chemical products, and chemical processes (805)

Chemistry (168)

City-urban (11)

Clippings (4)

Clubs and societies (3)

Competition and market structure (989)

Construction (134)

Contract litigation (76)

Contracts and other legal concerns (2968)

Copyright

Correspondence (15071)

Cosmology (7)

Crime and justice (4)

Cylinder phonograph (4607)

Cylinder record and duplicating technology (387)

Cylinder recording & reproducing apparatus (27)

Cylinder recordings (463)

D

Deaths and funerals (6)

Disc phonograph (37)

Disc record and duplicating technology (6)

District and alarm telegraphs (domestic telegraph) (75)

Dynamos and generators (3511)

E

Economics (4)

Edison effect and etheric force (89)

Edison-Miller family (1352)

Education (322)

Efficiency, scientific management, management theory (9)

Electric battery (1696)

Electric light and power (3916)

Electric pen and mimeograph (1088)

Electric traction (1102)

Electrical distribution system (1874)

Electricity and magnetism (687)

Electrocution (142)

Electromotograph (210)

Electroplating (41)

Energy and power (177)

Engineering (124)

Engines, boilers, prime movers (1632)

Environmental issues (13)

Escapement and governor mechanisms (76)

Expositions, demonstrations, lectures (2116)

F

Finances (4)

Finances (TAE and family) (2136)

Financial operations (companies and organizations) (2985)

Fluorescent lighting

Foreign affairs (23)

G

Gas, petroleum, and derivative products (260)

General economic and business conditions (30)

Geology and other earth sciences (123)

H

Health and medicine (348)

Health and safety (70)

Heat and thermodynamics (92)

I

Immigration

Incandescent lamp (4518)

International business operations (4568)

Inventions and creativity (96)

Isolated stations (506)

L

Labor (2069)

Letters of Recommendation (26)

Light and optics (53)

Literature (32)

Litigation (466)

Loans (1318)

M

Management (companies and organizations) (2694)

Manufacturing (758)

Mathematics (42)

Mechanics (11)

Menlo Park reminiscences (1876-1881) (67)

Metals and minerals (2052)

Microphone and other acoustic devices (356)

Military (78)

Miscellaneous technologies (189)

Miscellaneous electrical technologies (750)

Motion picture cameras (56)

Motion picture equipment (9)

Motion picture film technology (11)

Motion picture projectors (4)

Motion pictures (4)

Motors (836)

Multiple telegraphy (duplex, quadruplex) (765)

Music (132)

N

National government (U.S.) (262)

Natural disasters

Newspapers, books, other publications (2031)

O

Ore concentrate (121)

Ore exploration and mining (1215)

Ore milling (non-iron ore) (125)

Ore milling and separation (1876)

Ore mills (3)

Ore processing and storage (after separation) (39)

P

Patent and legal counsel (439)

Patent application (1167)

Patent assignments, licenses, and royalties (1546)

Patent infringement (642)

Patent interference (505)

Patents (1423)

Peephole Kinetoscope (48)

Philanthropy, charity, fundraising (2)

Phonograph

Phonograph equipment and accessories (215)

Phonoplex and railroad telegraphy (826)

Photographs and autographs (23)

Photography (142)

Physics (49)

Politics and government (22)

Production difficulties and adjustments (375)

Profits and losses (104)

Property (1143)

Pseudoscience and superstition (10)

Psychology

Public relations and public opinion (45)

Purchases (1301)

R

Race, religion, ethnicity (2)

Railroads and transportation (236)

Recording artists (55)

Reforms (19)

Religion and spirituality (51)

Reminiscences (1850s-1860s) (82)

Reminiscences (1870-1876) (31)

Reminiscences (after 1886) (15)

Research and development (581)

Rolls and crushers (167)

Rubber and goldenrod

S

Salaries, wages, and commissions (476)

Sales and service (2749)

Sand (15)

Sciences (4)

Scientific and other instruments (354)

Shipping and materials handling (1366)

Ships, yachts, and other vessels (14)

Social customs, norms, values (54)

Social sciences (8)

Sockets, fuses, meters, and other interior elements (1320)

Sound and acoustics (100)

Sports, leisure, recreation (60)

State and local government (203)

Stock ticker, universal printer, and other printing telegraphs (159)

Stocks, bonds, and investments (2615)

Switching and fusing (57)

T

TAE friends and associates (367)

TAE health (239)

TAE name

TAE opinions and prejudices (192)

TAE personality and character (226)

TAE visitors (19)

Talking doll (638)

Tasimeter (98)

Taxes (169)

Technical Notes and Drawings (1222)

Technology-science relations (8)

Telegrams and Cables (1974)

Telegraph (570)

Telephone (3809)

Testing and quality control (1171)

Theater (37)

Three-wire system (40)

Tools and machinery (829)

Travel (95)

Travel (TAE and family) (172)

Typewriter (81)

V

Vacuum and glass bulb (600)

Visual arts (143)

Vote recorder (6)

W

Water power (6)

Wireless and radio (5)