Some azaleas and camellias in the Town Hall. The railway was opened for me. Oh! When shall we find that the lines of electric lamps, 184. Paris, siege of, 265. Pedals of organ, 296; board 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. Amperage, 125. Angle of advance, 57, 58; incidence, 268; reflection, 268. Aorta, 360. Arc lamp, 182. Archimedes, 412. Armature, 162. Arteries.