214 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1940 



this period. This saving amounts to the stupendous figure of 

 $35,083,000,000. 



CONCLUSIONS 



The discovery of vulcanization was one of the great inventions of 

 modern times. It was basic, and it was of great and lasting import- 

 ance. Although manifold improvements of Goodyear's invention have 

 been made, it is still in use. Practically all the rubber goods that 

 are now manufactured or that have been manufactured since 1839 are 

 within the scope of his invention. 



Of particular interest to the scientist is the extent to which this 

 discovery stimulated research and development. As a result of the 

 work of the lone inventor in the New England kitchen a hundred years 

 ago, thousands of scientists and engineers throughout the world are 

 engaged in improving and applying this invention. A century of 

 development has not exhausted the invention. 



While we are met today to celebrate the one hundredth anniversary 

 of this discovery, tliis meeting is not the real memorial to this great 

 inventor. "If you would see his monument, look about you" and ob- 

 serve the great industry which he founded, whose products have been 

 vital to still greater industries and have contributed to the safety, 

 comfort, and prosperity of mankind. 



LITERATURE CITED 



(1) BoucHAEDAT. Bull. Soc. Chim., vol. 24, pp. lOS-9, 1875. 



(2) Faraday, Michael, Quart. Journ. Sci. Lit. Arts, vol. 21, p. 19, 1826. 



(3) Geer, W. C, Amer. Inst. Chem. Engrs., Akron, May 16, 1939. 



(4) Gladstone and Hibbert, Journ. Chem. Soc, vol. 53, p. 679, 1888. 



(5) Goodyeak, Chables, Gum-elastic, p. 177, 1851. 



(6) Henbiques, Robert, Chem.-Zeit., vol. 16, p. 1515, 1892. 



(7) HiMLEY, Ann., vol. 27, p. 40, 1838. 



(8) Hofmann, F., and Gottlob, K. (to Bayer & Co. ) , German Patent 280,198, 1914. 



(9) Katz, Gummi-Zeit., vol. 41, p. 2035, 1927. 



(10) Kondakov, Journ. Prakt. Chem. vol. 62, p. 172, 1900. 



(11) Kraemeb and Lansing, 89th Meeting Amer. Chem. Soc, New York, April 1935. 



(12) KuHN, et al., Kolloid-Zeit, vol. 87, p. 3, 1939. 



(13) Lebedev, Journ. Russ. Phys.-Chem. Soc, vol. 42, p. 949, 1910. 



(14) Rubber Chem. Tech., vol. 10, p. 127, 1937. 



(15) Seeligmann, Torrilhon, and Falconnet, India rubber and gutta-percha, 



2dEug.ed.,p.l36,1910. 



(16) Semon, Chemistry and technology of rubber, p. 415, New York, 1937. 



(17) Staudinger and Bondy, Ann., vol. 488, p. 127, 1931. 



(18) Tiij)en, Chem. News, vol. 46, p. 129, 1884. 



(19) Ibid., vol. 65, p. 265, 1892. 



(20) Weber, C. O., Gummi-Zeit., vol. 17, pp. 565-6, 1903. 



(21) Wieoand, Can. Chem. Journ., vol. 4, pp. 160-70, 1920; India Rubber Journ., 



vol. 60, pp. 379, 423-53, 1920. 



(22) Williams, Proc. Roy. Soc (London) , vol. 10, p. 517, 1860. 



