Sentence:  Within easy reach of his right hand lay a <WSD>coatful</WSD> of rocks culled from the road-bed, no mean weapons against figures silhouetted by the lamp-lighted windows of the buildings facing the right-of-way; and close to them were half a dozen dynamite cartridges, their wicked black fuses capped and inserted. 
Meaning of the word marked with <WSD> tags:  A quantity that is contained within a coat.