According to the National Center for Health Research (NCHR), pipe smoking uses fire-cured loose-leaf tobacco that is burned (lit) in a bowl. Cigarette smoking is similar and also uses loose-leaf ...

PHOTO Stephen Voss A 17th century tobacco pipe bowl reflects Native American design. PHOTO (pipe bowl) James Gibb, (background) Stephen Voss Ten years ago, when Smithsonian Environmental Research ...

when bowls was taken off the events list. His pipe-smoking persona made him stand out from the crowd, although it wasn't always lit and was sometimes gripped tightly through his teeth as a ...