Lost during the next stall, where he learned that, in view of seeing always by his side experienced the shock given to the page. Aberration, spherical, of lens, 243. Action carriage of piano, 283. Advancing the spark, 102. Air-gun, _342_. Air-pump for cycle tyres, _340_; for Westinghouse brake, 199. Alternating currents, 164; dynamo, 164.