. The Canadian field-naturalist. d B 50/*«. ^ 'l«*«^^' D Figure 2. Photomicrographs of gelatin-coated sHdes from Boulter Lake sediment core: (A) untreated, (B) the same slide after clearing with xylene; and Found Lake: (C) untreated, (D) cleared with xylene. Arrows — charcoal particles; black triangle — pine pollen Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-N

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. The Canadian field-naturalist. d B 50/*«. ^ 'l«*«^^' D Figure 2. Photomicrographs of gelatin-coated sHdes from Boulter Lake sediment core: (A) untreated, (B) the same slide after clearing with xylene; and Found Lake: (C) untreated, (D) cleared with xylene. Arrows — charcoal particles; black triangle — pine pollen Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club

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