=J.= Justices of peace, etc. 13432 =L.= Lamps--size of 961 Land--appropriation of 968 Lien on property for labor 972 Light in mines 943 Light or signal on locomotive and train 943 Loitering 959 Lowering and hoisting of persons 929, 950 Locomotives in mines 943, 958 Locomotives in mines--detaching 932 =M.= Maps-- duty of chief inspector 917 duty of owner, lessee or agent 935 addition to previous 936 abandoned mine map 937 persons entitled to examine 904 Machine men--duties of 957 Machine shields-- duty of owner, lessee or agent 941 duty of machine men 957 Machinery--examination of 967 Miners--duties of 956 Mine-foreman--duties of 952, 953, 959 Miner--qualifications of 965 Miner--inexperienced 965 Minors employed 13001, 13002, 13007-1-2, 7766 duty of inspectors 912 duty of owner, lessee or agent 944 duty of mine-foreman 953 Mines, new--construction of 949 Mine lamps 961 Mine committee report 906, 967 Motormen and trip riders--duties of 943, 958, 961 Monthly report of mine-foreman to chief inspector 953 =N.= New mines--construction of 949 New office--shall not create 920 Notice to chief inspector--when must be given 939 Notice to chief inspector and coroner of accidents 940 Non-compliance with Statutes--action for 916 =O.= Office--shall not create new 920 Office--chief deputy 904 Oil-- illuminating 974, 975 quantity allowed in mine 944 Oil lamp--size of 961 Oil and gas wells 973 Oil and gas wells--duty of chief oil and gas well inspector 914 Openings-- additional 950 second 930 Over-seer--duties of 954, 965 =P.=