1.   Today the man carrying the placard warning that the end is nigh May well be wearing a white laboratory coat.

2.   But many go a step further, with surgical masks, shoe coverings and laboratory coats.

3.   But workers in the Research Triangle are more likely to wear laboratory coats than overalls nowadays.

4.   He wears a stained laboratory coat and sandals.

5.   He wears starched white shirts and a white laboratory coat with his name in script on the right side.

6.   Then a library conservator, wearing a white laboratory coat and protective gloves, carefully removed Pooh from the case and handed him to the mayor.

7.   Amid the Western suits and flowing African robes, one delegate to the National Summit on Africa came dressed in a white laboratory coat.