ON THE COVER

Calgary’s Dr. Robert Berdan has discovered that tartaric acid crystals (“wine diamonds”) can produce beautiful images when photographed with a polarizing microscope at 100x. Many thanks to Dr. Berdan for the outstanding photograph of Niagara-on-the-Lake’s Icellars Estate Winery Sauvignon Blanc crystals on our cover. See more of Dr. Berdan's photography at canadiannaturephotographer.com/wine_ crystals.html