Penhallow sentence example

penhallow
  • P. Penhallow of Montreal and Dr. Gothan of Berlin which will be found useful for diagnostic purposes.
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  • Penhallow maintains that these smaller tubes arise as branches from the larger, but other observers have failed to confirm this.
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  • Ortoni (Penhallow), from the Devonian of Canada, the tubes are quite uniform, and there are no spaces or concentric rings.
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  • The tubes have their cavity dilated at intervals, and Penhallow has therefore compared them with the trumpet-hyphae of Laminariaceae, but no transverse septa are anywhere visible.
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  • P. Penhallow of Montreal has described the anatomical structure of the stem of Sequoia Langsdorfii, a Tertiary species occurring in Europe and North America.
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