references: technology 471 



Bureau of Standards. United States Government specification for Portland 

 cement. Bur. Stds. Circular No. 33, ed. 3. Pp. 43. 1917. 



Bureau of Standards. National electrical safety code. Bur. Stds. Circular 

 No. 54, ed. 2. Pp. 323. 1916. 



Bureau of Standards. Standards for electric service. Bur. Stds. Circular No. 

 56. Pp. 262. 1916. 



Bureau of Standards. Specifications and tolerances for weights and measures 

 and weighing and measuring devices. Bur. Stds. Circular No. 61. Pp. 44. 

 1916. 



Bureau of Standards. Specifications for and methods of testing soaps. Bur. 

 Stds. Circular No. 62. Pp. 25. 1916. 



Bureau of Standards. Specification and tests of the transparency of paper and 

 tracing cloth. Bur. Stds. Circular No. 63. Pp. 8. 1917. 



Bureau of Standards. Rules and regulations for enforcement of lime-barrel act. 

 Bur. Stds. Circular No. 64. Pp. 70. 1917. 



Bureau of Standards. Gas calorimeter tables. Bur. Stds. Circular No. 65. 

 Pp. 19. 1917. 



Bureau of Standards. Standard samples for thermometric fixed points. Bur. 

 Stds. Circular No. 66. Pp. 13. 1917. (Describes the methods of prepara- 

 tion and the chemical analyses of the metals, tin, zinc, aluminium, and cop- 

 per, which have been prepared for distribution.) 



Cain, J. R., and Rawdon, H. S. Report on the investigation of ladle-test steel 

 ingots. Proc. Amer. Soc. Test. Mater., 16: 129-144. 1916. 



Emley, W. E. The manufacture and properties of sand-lime brick. Bureau of 

 Standards Technologic Paper No. 85. Pp. 41. 1917. 



Herschel, \Y. H. Discussion of the report of committee D-4 on road materials. 

 Proc. Amer. Soc. Test. Mater., 16: 316. 1916. 



Herschel, W. H. Quantitative test for resistance of lubricating oils to emulsifi- 

 cation. Proc. Amer. Soc. Test. Mater., 16: 248. 1916. 



Herschel, W. H. Testing of lubricating oils; an address delivered before the Inde- 

 pendent Oil Mens Association, Chicago, Oct. 19, 1916. Oildom, 6: 590. 1916. 



Herschel, W. H. Design of a water brake. Power, p. 133. 1916; Engineering 

 News, p. 378. 1916. 



Herschel, W. H. The testing and standardization of lubricating oils. Oil, Paint, 

 and Drug Reporter, 91: 14. 1917. 



Herschel, W. H. Note? on speed indicators for airplanes. The Pitot tube. Aviat. 

 and Aeronaut. Eng., p. 384. 1917. 



Herschel, W. H. Note on speed indicators for airplanes. The Venluri tube. 

 Aviat. and Aeronaut. Eng., Feb. 15, 1917. 



Herschel, \V. H. The resistance of an oil to emulsification. Bureau of Stand- 

 ards Technologic Paper No. 86. Pp. 37. 1917. 



Kleix, A. A. The cojistilution and microstructure of porcelain. Journ. Wash. 

 Acad. Sci., 6: 658-660. 1916; Bureau of Standards Technologic Paper No. 80. 

 Pp. 38. 1916. 



Lewis, W. S. Comparative tests of stitches and seams. Bureau of Standards Tech- 

 nologic Paper No. 96. Pp. 19. 1917. 



McCullom, B., and Ahlborn, G. H. Influence of frequency of alternating or in- 

 frequently reversed current on electrolytic corrosion. Bureau of Standards 

 Technologic Paper No. 72. Pp. 31. 1916. 



