To find lost part of a vein--Calculation of ore reserves--Hydraulics--Boring--Durability of ropes--Diamond drilling--Notes on timber--Laying out areas--Mensuration--Mine surveying problems--Rainfall--Belting notes--Weight and bulk of materials--Chemical elements and their symbols, &c.--Common names of chemical substances--Thermometer readings--Freezing, fusing, and boiling points--Heat values of fuels--Signs and symbols used in expressing formulas--Weights and measures--To find contents of a tank--Sizes and weights of corrugated iron sheets--Thickness and weight of sheet iron--Qualities of ropes--Atmosphere--Fresh and salt water--Velocity of falling fluids--Pressure of water--Table of squares and cubes, and their roots--Wages and interest tables. pp. 167-193 2. AUSTRALASIAN MINING REGULATIONS pp. 194-201 INDEX pp. 203-206 GETTING GOLD CHAPTER I INTRODUCTORY Gold is a name to charm by. It is desired by all nations, and is the one metal the supply of which never exceeds the demand. Some one has aptly said, “Gold is the most potent substance on the surface of our planet.” Tom Hood sings: Gold, gold, gold, gold! Bright and yellow, hard and cold; Molten, graven, hammered, rolled, Heavy to get, and light to hold; Stolen, borrowed, squandered, doled. That this much appreciated metal is heavy to get is proved by the high value which has been placed on it from times remote to date, and that it is light to hold most of us know to our cost. We read no farther than the second chapter in the Bible when we find mention of gold. There Moses speaks of “the land of Havilah, where there is gold”; and in Genesis, chapter xxiv., we read that Abraham’s servant gave Rebekah an earring of half a shekel weight, say 4 dwt. 13 grs., and “two bracelets of ten shekels weight,” or about 4½ ozs. Then throughout the Scriptures, and, indeed, in all historic writings, we find frequent mention of the king of metals, and always it is spoken of as a commodity highly prized.