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Contents: Observations on the Native Silk Worms of North-America, by Moses Bartram; A Description of a New Orrery, by David Rittenhouse; A Self-moving or Sentinel Register, by William Henry; A Bilge-pump Operated by the Motion of the Ship, by Richard Wells; The Eruption of Vesuvius in 1767, by Isaac Jamineau; A Method for Destroying Wild Garlic in Grain-fields, by Henry Hollingsworth; Means of Controlling Injury Done to Wheat by Flies, Report of a Committee; Proposal for Observing the Transit of Venus, June 3, 1769, by John Ewing; On the Time of Sowing Pease, by Peter Miller; Medicinal Plants for Treatment of Diarrhaeas & Intermittent Fevers, by Lionel Chalmers; The Fly-weavil That Destroys the Wheat, by Landon Carter; An Oil Made from the Seeds of the Common Large Sunflower, by John M. Otto; Expression of Oil from Sunflower Seeds, by John Morgan; Therapeutic Value of the Waters of Bristol, Pennsylvania, by John De Normandie; Distillation of Persimons, by Isaac Bartram; Effects of the Weather on Various Diseases of South-Carolina, by Lionel Chalmers; A General Method for Constructing Magic Squares, by John Ewing; Essay on the Dry Belly Ach or Nervous Collick, by Lionel Chalmers; Essay on the Catarrhal Peripneumony, by Lionel Chalmers; Essay on the Catarrhal Consumption, by Lionel Chalmers; & Propagating Useful Knowledge from Philadelphia, 1768-1771: Commemorative Essay by a Member of the Society. Illus.
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