One day, easterly winds prevailing, I got blown through the doors of some place in west Edmonton called Lee Valley. Odd name eh?
Eventually I bought 2 T5HO tubes @ $6.95ea for my 24" fixture. When I turned to head for the door (thinking about a certain Ikea commercial the whole time) I spied a glass cabinet that contained this: http://www.leevalley...2,40725&p=68352
Yes, I know dwt units are now obsolete - after all, pennies are being pulled out of circulation. And besides, who weighs pennies anyways? But it also weighs to 0.1g for things like Levamisole, KMnO4, KH2PO4 et al.
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