William Ewart

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A 250-year retrospective mortality study of York Factory, on the shores of Hudson Bay, was undertaken. The daily journals of the Hudson's Bay Company and the records of the Anglican Church of Canada were the principal sources examined. From 1714 to 1801 the death rate among the Europeans was 0.015 per year, about 10 times today's level but in line with(More)
In California U.S.A., 238 named species of the insect Order Thysanoptera, in 87 genera and eight families, are listed as having been found in this state. Inspection of museum collections indicates many undescribed species of thrips exist. Little is known of the host plants of native California thrips species, due to imprecise collecting methods such as(More)