1.   Even if guards smell smoke in the cellblocks, Stafford noted, it often is impossible for them to pinpoint its origin in time to nab the smoker.

2.   Radar capable of pinpointing the origin of incoming shells had not detected the rounds.

3.   Ristaino said more strains of the blight needed to be sampled worldwide to help pinpoint the origin of the one she had found in the herbarium samples.

4.   The tissue samples will lay the groundwork for future studies that researchers hope will one day pinpoint the origin of the skin lesions, Bossart said.

5.   They pinpointed the origin of the blaze in the dining room.

6.   Pinpointing the origin of fire is sometimes a problem, but identifiable targets will get a proportionate response which will escalate if fire continues, he said.

7.   Radar can pinpoint origin of shelling.

8.   Pinpointing the origin of fire is sometimes a problem, but identifiable targets will get a proportionate response that will escalate if fire continues, he said.

9.   It was the first time the U.N. pinpointed the origin of the fire based on artillery tracking radar.

10.   Later, tribes developed stylized motifs, preferred dyes, knot-types -- all of which the keen collector can use to pinpoint origin.