• The physical properties of the free elements show a regular gradation from nonmetallic to metallic as one passes ( or goes ) from nitrogen to bismuth.
• When passing from forced circulation to natural convection ...
• The differential change in the individual components of v in moving ( or going ) from P ( x, y, z ) to 0 ( x + dx + du, z + dz ) is given by ...
• The character of the clay minerals changes in passing from one environment to another.