Risk class. Title umber. Group and establishment. 1905 to 1909. 1910 to 1914. GROUP III.-SMELTING WORKS, MINING OF "NONRESERVED" MINERALS, ETC.--concluded. Rolling mills: 48 Small iron and wire.. Rating by the institution in Brünn.... Rating by the institutions in Prague and Brünn. 49 Coarse rolling mills... Rating by the institutions in Brünn and Gratz.. 50 Thin sheets... 51 Coarse sheets. Rating by the institution in Brünn. 51a Tubes..... Rating by the institution in Brünn.. Rating by the institution in Prague. 52 Copper and brass works, including rolling and hammer works. Rating by the institution in Vienna. Zinc furnaces and zinc rolling works.. 532 Miscellaneous work undertaken by the establishments, such as storage work, transportation, etc., in larger iron works, etc.. GROUP IV.-STONES AND EARTHS. (a) Stone quarries, etc.: (a) 54 Quarries for marl and cement material.. 54a Talcum digging. and stone mason's shapes (6)... Rating by the institutions in Prague, Trieste, and Lemberg. 56 Slate quarries...... 569 Slate quarries, including working up of products. 57 Quarries for broken stone, but not including the breaking. 58 Stone breaking, by machine.. 59 Stone breaking, by hand. 60 Miscellaneous stone quarries 61 Collecting and breaking of bowlders.. (b) Pits, other open digging, etc.: 62 Sand, gravel, and rubble pits ( )... 63 Miscellaneous pits (a).... 633 Digging of galleries and shafts. Peat cutting, by hand...... Sculpture work--decorative, figure work, etc. 66 II Cement manufacture (not including the making of barrels). 67 Cement ware factories...... 68 Grinding of precious stones.. 69 Gypsum mills.. 70 Making of monuments and gravestones 71 Factories for making granite and marble articles. 72 Limekilns with ring or circular ovens .. III V II III V VI IV VI VII VII VI IV II Annual report of United States. Bureau of Labor Mortar making.. INT V 84 85 |