1.   Toddlers can crawl under the sink, for instance, and drink a caustic substance, or reach into a drawer and cut their fingers on a knife.

2.   Forensic tests on their contents later identified the caustic substance as sodium hydroxide, the spokesman said.

3.   Reporting live from Scotland Yard, the Independent Television News network said the caustic substance could cause skin problems.

4.   Two packages containing a caustic substance disguised as eucalyptus oil were sent to Prime Minister Tony Blair and a Scottish legislator, Scotland Yard said.

5.   Two packages containing a caustic substance disguised as eucalyptus oil were sent to Prime Minister Tony Blair and a Scottish legislator, Scotland Yard said Friday night.

6.   The dead men all had severe liver damage and blood in their lungs and autopsies revealed a highly caustic substance thought to be the poison, the doctor said.