The forces of matter ; The chemical history of a candle / by Michael Faraday
On the conservation of force ; Ice and glaciers / by Hermann von Helmholtz
The wave theory of light ; The tides / by Sir William Thomson (Lord Kelvin)
The extent of the universe / by Simon Newcomb
Geographical evolution / by Sir Archibald Geikie.
The forces of matter ; The chemical history of a candle / by Michael Faraday
On the conservation of force ; Ice and glaciers / by Hermann von Helmholtz
The wave theory of light ; The tides / by Sir William Thomson (Lord Kelvin)
The extent of the universe / by Simon Newcomb
Geographical evolution / by Sir Archibald Geikie.
The forces of matter / by Michael Faraday
The chemical history of a candle / by Michael Faraday
On the conservation of force / Hermann von Helmholtz
Ice and glaciers / by Hermann von Helmholtz
The wave theory of light / by Sir William Thomson (Lord Kelvin)
The tides / by Sir William Thomson (Lord Kelvin)
The extent of the universe / by Simon Newcomb
Geographical evolution / by Sir Archibald Geikie.
