Highs, Thomas, reputed inventor of jenny and roller-spinning, 94-97, 108, 110, 111; invented double-jenny, 94-95; aptitude for invention, 96; witness against Arkwright, 95; associated with Kay in making roller-spinning machines, 108-110; alleged to have improved carding-machine, 111_n._ Hollingworth, _Mancuniensis_, 30 Hollingworth, R., 30_n._ Horrocks & Co., 172 Horrocks, J., manufacturer of fine cotton fabrics, 130-131; helped to make power-loom practicable, 140_n._; supported Crompton’s appeal to Parliament, 167 Horwich, cotton yarns reported to be spun at, in 1510, 2_n._ Houldsworth, H., fine cotton spinner, 127 Houldsworth, T. and J., fine cotton spinner, 127 I India, import of cotton fabrics from, 130; export of cotton fabrics to, 130 and _n._ Industrial Revolution, a general transition in industry and agriculture, xxix., 1, 145-146; an acceleration of previous developments, 145; popular view of, inaccurate, 54; Napoleonic War a dominant factor in, 147-148; social evils of, due to Napoleonic War, 146-148 Inventions, effect of, 66, 72, 91; opposition to, 82 Ireland, linen-yarn from, used in fustian manufacture, 9, 58; Irish Parliament passed commercial propositions, 104; important source of supply of linen-yarn, 8, 58; different qualities of Irish linen-yarn, 58 Italy, early cotton industry of, xxii. J James, T., partner of Hargreaves’, 97 Jenny, see Double-Jenny, Hargreaves, Highs; introduction of, 38, 95, 114; was outcome of previous efforts, 145; invention of, 76; controversy as to inventor, 96 and _n._; description of, 79-80, 96; greatly facilitated spinning of weft, 97; produced soft thread only suitable for wefts, 116-117; defects of, 80-81; growing use of, 90, 95, 97, 124; number of spindles increased, 80; number at work in 1788 estimated, 121_n._; used for waste, 181; used in woollen industry more than in cotton, 124_n._; superseded hand-wheel, 124; superseded by mule, 97, 124; conditions when introduced, 88 Johnson, helped to make power-loom practicable, 140_n._ Jones, W., 170 _Journal of House of Commons_, 20_n._, 23_n._, 24_n._, 29_n._, 36_n._, 37_n._, 52, 58_n._, 59_n._, 64, 65_n._, 82_n._, 89_n._, 90_n._, 99_n._, 102_n._, 155_n._, 156_n._, 157_n._, 174_n._ K Kay, John, invented and patented flying-shuttle, 73 and _n._; other inventions of, 73; appealed for recognition of his inventions, 73; connection with Arkwright and Thomas Highs, 108; witness against Arkwright in third trial, 108, 111; death in France, 74 Kay, Robert, inventor of drop-box, 73 Kelly, Wm., manager of New Lanark Mills, applied water-power to mules, and patented self-actor mule, 125