You get used to knowing the different types of hardness and thickness.
The hardness came back into his eyes and he looked away.
His warm hands covered hers and she could feel the hardness of his chest muscles on her back as he guided her arms in a smooth swing.
The heat of his bare chest beneath her hands and the hardness of his arousal against her belly made need roar to life within her.
The iron-bark of the eastern coast uplands is well known (Eucalyptus sideroxylon), and is so called from the hardness of the wood, the bark not being remarkable except for its rugged and blackened aspect.
The I heart-wood ceases to be of any use to the tree except as a support, but owing to its dryness and hardness it alone is of much use for industrial purposes.
It is an ironblack, opaque mineral, with metallic lustre; hardness about 6, sp. gr.
For building and miscellaneous purposes, in addition to the rare woods above named, there are cedars (used in great quantities for cigar boxes); the pine, found only in the W., where it gives its name to the Isle of Pines and the province of Pinar del Rio; various palms; oaks of varying hardness and colour, &c. The number of alimentary plants is extremely great.
The hardness is 2 -3; smooth cleavage surfaces can be just scratched with the finger-nail.
But this " critical value " of the force is found to depend in an unexpected manner upon the hardness of the steel; the critical value diminishes as the hardness becomes greater up to a certain point, corresponding to a yellow temper, after which it increases and with the hardest steel becomes very high.
Its hardness is rather above 5, and its specific gravity varies from 3.5 to 4.
Then the boy returned to one of the upper rooms, and in spite of the hardness of the glass bench was soon deep in slumberland.
Then her attention was called to the hardness of the one ball and the softness of the other, and she learned SOFT and HARD.