CHAPTER XVII. ON CONVECTION CURRENTS. PAGE How they are Produced.250 Joule’s Determination of the Point of Maximum Density of Water 252 CHAPTER XVIII. ON THE DIFFUSION OF HEAT BY CONDUCTION. Conduction through a Plate. *253 Different Measures of Conductivity.255 Conduction in a Solid.255 Sketch of Fourier’s Theory.259 Harmonic Distributions of Temperature . . • 263 Steady and Periodic Flow of Heat.265 Determination of the Thermal Conductivity of Bodies . . 268 Applications of the Theory.272 CHAPTER XIX. ON THE DIFFUSION OF FLUIDS. Coefficient of Diffusion. *275 Researches of Graham and Loschmidt . • • • *278 CHAPTER XX. ON CAPILLARITY. Superficial Energy and Superficial Tension . . • 280 Rise of a Liquid in a Tube ....... 286
- Evaporation and Condensation as Affected by Capillarity • • 287
Table of Superficial Tension.292
