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Plant biologist Richard Firn explains, "at the start of the seventeenth century, Europeans first encountered the Amerindians in the English colony of Virginia and the found a culture of smoking Nicotiana rusticum ." 3 Botanist Ken Thompson says, that although Sir Walter Raleigh smoked N.rusticum , "it contains dangerously high levels of nicotine, so was quickly superseded by the milder N

81 with the following puffing regime: 55 mL puff volume, three second puff duration, 30 seconds puff interval and a rectangular wave puff profile

They are also more environmentally friendly and dont require frequent disposal

While their core function remains unchanged, their versatility has rendered them indispensable in various situations

hopefully early 2014