- @kragen @abecedarius I believe his 1861 paper "On Physical Lines of Force" had 20 equations in 20 cartesian component variables, and in his 1873 book "A Treatise on Electricity and Magnetism" he switched to quaternion notation.
- The first sentence of Maxwell's monumental, world-changing "Treatise on Electricity and Magnetism". http://t.co/nwHyxeQifm
Volume 1 of an important foundation work of modern physics describes electrostatic phenomena and develops a mathematical theory of electricity. Topics include electrical work and energy in a system of conductors, mechanical action between two electrical systems, spherical harmonics, electric current, conduction and resistance, electrolysis, and other subjects. 1891 edition.