The slot was packed full of a grainy brown substance.
The doctor walked over to the drug cabinet and took out a large bottle which looked as if it was full of a brown substance.
He took his time until he was sure that the brown substance aimed straight for the cave.
Holding them wrapped in a large leaf, he pointed out some dark brown substance that covered the points.
The thick brown substance laid the sea flat as a newspaper.
Upon additional processing, he obtained two new substances; one brown and one green.
In her hand she held two plates of a steaming brown substance.
Pay particular attention to this brown substance, and to features which seem to be missing from the body.
His fingers were sticky with a dark brown substance.
Inside the envelope was a threatening letter and a brown substance.