TY - JOUR T1 - On Certain Dimensional Properties of Matter in the Gaseous State. Part I. Experimental Researches on Thermal Transpiration of Gases through Porous Plates, and on the Laws of Transpiration and Impulsion, including an Experimental Proof That Gas Is Not a Continuous Plenum. Part II. On an Extension of the Dynamical Theory of Gas Which includes the Stresses, Tangential and Normal, Caused by a Varying Condition of the Gas, and Affords an Explanation of the Phenomena of Transpiration and Impulsion. JF - Proceedings of the Royal Society of London (1854-1905) VL - 28 SP - 303 EP - 321 PY - 1878/01/01/ UR - http://dx.doi.org/10.1098/rspl.1878.0134 M3 - doi:10.1098/rspl.1878.0134 AU - Reynolds, O. ER -