1770-1776:

anemonies angle animal aphides appears Arcturus ball barometer bird body canal centre chestnut Churchill river circle circuit colour common conductor consequently degree denarius density diameter discharge distance drachm earth eclipse ecliptic electrified equal experiments explosion feet fish force glass greater half heat horizon Hudson's Bay hygrometer inches insects instrument insulated isinglass kind latitude legs length less light longitude manner matter means micrometer motion myrrh nature nearly observatory observed overcharged parallax particle perpendicular piece plants plate pound produced proportion quadrant quantity quinarius redundant fluid remarkable repelled repulsion right ascension right line salt seems Severn river side sine space species specimen spherical angle stars substance sun's limb supposed surface tail taken telescope thermometer thick tion tophus transit of Venus trees triangle tube undercharged upper Venus vessel weather weight whole wire zenith distances