APPENDIX 



CHAPTER V 



CLOTHING THE EXTREMITIES 



Material for this chapter is largely drawn from the article on 

 Boots and Shoes, by Mr. George C. Houghton, and the article on 

 Leather Gloves and Mittens, by Mr. Arthur L. Hunt, both in the 

 Twelfth Census Report of the United States, Washington, 1903. 

 The quotation beginning at p. 108 is from Mr. Houghton's article, 

 as stated in the text; and the section on the manufacture of gloves 

 is largely based on Mr. Hunt's exposition of the subject. 



CHAPTER VI 



THE EVOLUTION OF THE DWELLING HOUSE 



(pp. 134-136.) Habitations of the Cave Dwellers. The quota- 

 tion is from "Les premiers Hommes et les Temps Historiques," 

 by the Marquis de Nadaillac. Translated by Nancy Bell, New 

 York, 1906. 



CHAPTER VII 



THE MODERN SKYSCRAPER 



(pp. 179-180.) Statistics as to wind pressure. The quotation 

 is from The Scientific American, December 15, 1908, p. 401. 



CHAPTER VIII 



ARTIFICIAL STONE, OR CONCRETE 



(pp. 185-186.) Concrete Blocks. The quotation is from "The 

 Manufacture of Concrete Blocks," by H. H. Rice, New York, 

 1906. 



(pp. 198-199 and 200-201.) Concrete as a Preservative of 

 Iron. The quotation is from "Reinforced Concrete," by Charles 

 F. Marsh and William Dunn, New York 1907, p. 7. 



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