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[[start page]] [[pre-printed]]tabs for letters of the alphabet: O - Z [[/pre-printed]] Objection to the Season in which the Deluge happened, with its solution. p.4. Oil & Sulphur cause vegetable colours. p.8. Objection to the accounting for the moon's [[addendum]] not [[/addendum]] moving round her own Axis, with the answer. p.38. ---- to the Moon's not abandoning the earth p.40. Object-glasses of Telescopes improved by Dollond. p.70 to 80. Obstacles, placed in a running stream, of the rise & fall of the water thereby. p.80. Objection, to muscular motion. p.95. Oister-shells, will cure the Gravel or Stone, p.39. Oil of [[Spike?]] mixed with any colour penetrates glass. [[D.o.]] Objections to Hutchinson's System V. Hutchinsonian. &c. [[Ovrery?]], an improvement & an addition to be made to any already made. for the path of the earth and moon round the Sun. p.[[underlined]] 56A [[/underlined]] of Gents. Mag, Vol. 22. for 1752. by electricity, 1750 Vol.20. p. 535 Oil of Spermaceti, expence of burning it p.134. Objects appear less in a dense than a rare medium p.136. Observations made at Greenwich, to be published yearly after 1763. V. Philos. Trans. for 1763. p 168. Oak, to dye is of a fine black, Vol II. p.79 [[end page]]