Calendar: 1868-1869 Page 142

142 APPLIED SCIENCES II Glass Working Operations with glass rod Joining bending and sealing glass tubes Blowing glass bulbs and funnel tubes Making test tubes III Use of the Mouth Blowpipe Effect of high temperatures upon salts &c of fre- quent occurrence Detection of metallic poisons mercury arsenic copper Sec by the blowpipe Reduction of metals examination of ores in the dry way IV Preparation of Gases Manipulation with the gasholder preparation of hydrogen Preparation of carbonic acid nitric oxide and olefiant gas Preparation of gases soluble in water -hydrochloric acid ammonia Distillation Distillation of water testing for impurities in water Preparation of hydrochloric and nitric acids tests of their purity Solution of ammonia prepared and tested VI Alkalimetry and Acidimetry Determination of the available alkali in samples of potash and soda Determination of the quantity of real acid in the hydrochloric and nitric acids of commerce Determination of the strength of dilute sulphuric acid VII Heating solid substances in different gaseous atmo- spheres Reduction of oxide of copper in hydrogen deter mination of the copper Determination of sulphur and charcoal in the in soluble residue from gunpowder