Boris smiled almost imperceptibly while listening to his mother.
On either bank of the Brahmaputra a long narrow strip of plain rises almost imperceptibly to the foot of the hills.
The universal experience of ages, showing that children do grow imperceptibly from the cradle to manhood, did not exist for the countess.
This sketch of an enormous subject shuws us that the pathology of plants is a special department of the study of variations which threaten injury to the plant, and passes imperceptibly into the study of variations in general.
These pass imperceptibly into - (5) the arid desert, where rainfall is at a minimum, and the only plants are those modified to subsist with the smallest supply of water.