As they walked back down the dune, she dragged her hand in a wavy line, trying to obliterate their tracks.

11, C, tending in fact to obliterate altogether the lumen of the filament.

They failed to realize that permissible abstraction from specific contents or methods of knowledge does not obliterate reference to matter or content.

For I came to town still, like a friendly Indian, when the contents of the broad open fields were all piled up between the walls of the Walden road, and half an hour sufficed to obliterate the tracks of the last traveller.

He rejected the theory of the unity and continuity of history so far as it would obliterate distinctions between ancient and modern history, holding that, though work on ancient history is a useful preparation for the study of modern history, either may advantageously be studied apart.