ballasting

He has tacked that attachment notice onto a poor innocent old car filled with ballasting cinders.

Very imperfect grading and ballasting was done in the hasty building of this road.

We found them at the landing, ballasting the boat with stones and getting on their oil-skins.

Fine concrete gutters along the curves, such ballasting as one sees on the North-Western Railway.

The writer seems to look upon ballasting and calking as identical operations.