Document 2RnG2rnNG0M5B60ydVzZpEMgg

'SiT. Hatch','"Warren,'HTT>nnk'er7~rr:' Greenburg-Smith Impinger for Field Use, with a Study of its Operating Characteristics. J. Ind. Hyg., 14:301-311, 1932. 59. Hatch, T. and Pool, C. L.: Quantitation of Impinger Dust Samples by Dark Field Microscopy. J. Ind. Hyg., 16:177191, 1934. 60. Holtzmann, F.: Die Einwirkung des Asbeststaubes. Zentralbl. f. Gewerbehyg., 8 '225-226, 1931. 61. Industrial Directory--1931 Edition. Pa. Dep't of Internal Affairs, Harrisburg. 62. Katz and Slater: The Second Positive Wave of the Q-R-S Complex. Arch. Int. Med., 55: Ho. 1, Jan. 1935. 63. Kettle, E. H.: Interstitial Reactions Caused by Various Dusts and their Influence on Tuberculous Infections. J. Path, and Bact., 35:395-405, 1932. 64. Knopf, A.: The Quantitative Determination of-Quartz ("Free Silica") in Dusts. U. S. Pub. Health Reports, 48:183-190, 1933. S"*. . * 65. Kruger, E., Rostoski, O., Saupe, E.: Asbestosis. Arch. f. Gewerbepath. u. Gewerbehyg., 2:558-590, 1931. Abstr., J. Ind. Hyg., 14:144, 1932. 66. Lanza, A. J., McConnell, W. J., Fehnel, S. W.: Effects of the Inhalation of Asbestos Dust on the Lungs of Asbestos Workers. A Preliminary Study. U.: S. Pub. Health Re ports, 50:1-12, 1935. 67. London Letter: Pneumonoconiosis Caused by Asbestos Dust. J. Am. Med. Assn., 89:304, 1927. . 68. Lovisetto, D.: Asbestosi. In: Studi sulla pneumaconiosi in Italia, 1930, p. 115-132. Istit Poligr. dello Stato, Rome. 69. Lynch, K. M. and Smith, W. A.: Asbestosis Bodies in Sputum and Lung. J. Am. Med. Assn., 95:659-661, 1930. 70. Lynch, K. M. and Smith, W. A.: Pulmonary Asbestosis, 11. Including a Report of a Pure Case. Am. Rev. Tuberc., 23:643-660, 1931. Abstr., J. Ind. Hyg., 13:241, 1931. 71. MacDonald, S.: Histology of Pulmonary Asbestosis. Brit. Med. J., 2:1025-1026, 1927. 72. Merewether, E. R. A.: Occurrence of Pulmonary Fibrosis and Other Pulmonary Affections in Asbestos Workers. J. Ind. Hyg., 12:198-222,239-257, 1930. 73. Merewether, E. R. A.: A Memorandum on Asbestosis. Tubercle 15:69-81, 109-118, 152-159, 1933. 32