. The conquest of nature. ries of Heat and Light, vol. III., p. 206 seq. CHAPTER XII THE MINERAL DEPTHS The chapter on The Origin and Development of ModernGeology, vol. III., p. 116 seq., may be read in connection withthe allied subjects here treated. In preparing the section on the use of electricity in mining, thearticle by Thomas Commerford Martin, entitled Electricity inMining, in the United States Census Report of 1905, has beenfreely drawn upon. The quotations on pp. 262, 266, 268, and270 are from that source. CHAPTER XIII THE AGE OF STEEL See note under chapter XII. CHAPTER XIV SOME REC
. The conquest of nature. ries of Heat and Light, vol. III., p. 206 seq. CHAPTER XII THE MINERAL DEPTHS The chapter on The Origin and Development of ModernGeology, vol. III., p. 116 seq., may be read in connection withthe allied subjects here treated. In preparing the section on the use of electricity in mining, thearticle by Thomas Commerford Martin, entitled Electricity inMining, in the United States Census Report of 1905, has beenfreely drawn upon. The quotations on pp. 262, 266, 268, and270 are from that source. CHAPTER XIII THE AGE OF STEEL See note under chapter XII. CHAPTER XIV SOME RECENT TRIUMPHS OF APPLIED SCIENCE In connection with various portions of this chapter the readerwill find much that is of interest in the story of chemical develop-ment in general as detailed in volume III., pp. 3-72 inclusive. Also various chapters on electricity as outlined under chapterVII. above. (p. 310). Nitrogen from the air. The quotation is from theEngineering Supplement of the London Times, January 22, 1908. [325]. , ^ \v ^* (^v l^y. i) ° ^ V - > Deacidified using the Bookkeeper process. L :; =» c, ^ - K^^^^^ ^ A A 7 Neutralizing agent: Magnesium Oxide , I p-- ~^/ * \/ ^ \ ^fcS / V ^^i> . Treatment Date: Aug. 2003 ^ ^ ^^^^^^ , K c, ^-x,^ - ^ ^ \\\^ ^.«, %■ PreservationTechnologies C »^ c-^^Cxv ^ ^-^ ^ ^ /r^^ - A WORLD LEADER IN PAPER PRESERVATION <x^^ ^^-
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