Daylight in winter twice as effective as electric light in experiments on horticulture, 228. ... Deville and regenerative gas furnaces, difference between methods of obtaining heat in, 221. ... Diagram of electric resistance of platinum, 145 ; of law of increased DISSOCIATION. resistance with temperature, explanation of, 148anbsp;...
|Title||:||The Scientific Works of C. William Siemens ...: Electricity and miscellaneous|
|Author||:||Sir Charles William Siemens|