Calendar: 1858-1859 Page 112

112 APPLIED SCIENCES III Use of the Mouth Blowpipe Effect of high temperatures upon salts &c of fre- quent occurrence Detection of metallic poisons mercury arsenic copper &-c 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 VIII Processes of testing Behaviour of the most important bases and acids with re-agents Identification of simple salts