| 41. | In 1792 " Butterworth " s burthen changed to 390 tons after a " great repair " in 1791.
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| 42. | In 1812 he built his " Comet ", of 30 tons burthen, with an engine of three horsepower.
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| 43. | Burthen 200 tons, copper fastened, with Copper on her Bottom ", for sale at Deptford on 1 December 1795.
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| 44. | These ships were of between 500 and 1200 nominal tons burthen ( Macau Incident without combat by the small Royal Navy escort squadron.
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| 45. | Her overall length was with a lower gundeck of, a broad beam of, hold depth of and measuring 1286 tons burthen.
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| 46. | As built, " Aquilon " was long with a keel, a beam of, and measuring 599 tonnes burthen.
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| 47. | By 1795 he had built up a fleet of eleven vessels of a total burthen of 1, 750 tons ( bm ).
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| 48. | Therefore, one should not change a measurement in " tons burthen " into a displacement in " tons " or " tonnes ".
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| 49. | On 5th March, 311 slaves were embarked in this small schooner, which is apparently not more than 35 British tons in burthen.
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| 50. | This cutter, built in 1803, carried eight 12-pounder carronades and was of 68 } } tons burthen ( bm ).
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