Second opening 930 Shafts--fire protection 930 Shields--machine-- duty of owner, lessee or agent 941 duty of machine men 957 Signals-- code of 942 locomotive 943 danger 925, 955, 959 persons designated to give and receive 929 Solid shooting 976-1-3 Speaking tube 928 Squibs 963 Stables--underground-- construction of 945 fire must not be taken into 960 stablemen--duties of 955 Superintendent's duties 951 Surveying party--transportation of 969 Survey of mine and examination 969 Switches 947 =T.= Tamping tools--kind permitted 963 Telephones 934-2 Test weights 941 Timber-- duty of owner, lessee or agent 933 duty of mine-foreman 953 duty of miners 956 Trip riders and motormen--duties of 943, 958, 961 Traveling ways and refuge holes 931 Traveling ways--duty of employes 959 Transportation of surveying party 969 Trolley wires 947 =U.= Underground stables-- construction of 945 fire must not be taken into 960 stablemen--duties of 955 voltage 948 =V.= Ventilation-- duty of owner, lessee or agent 922, 923, 924 duty of mine-foreman 952, 953 report of mine committee 906, 967 voltage 948 =W.= Wash room 934-1 Weigh scales 910, 941 Weighing of coal 978-1-7 Weighmaster--duties of 966 Weights and measures--sealers of 910 Withdrawal of persons from mine 959 When act takes effect 978 Who entitled to examine maps, records, etc. 904 Wires 947 Working places--examination of-- duty of owner, lessee or agent 925 duty of mine-foreman 952 duty of fire-boss 955 duty of miner 956