An oil holding tank is communicated to the case of the compressor. These compounds and compositions possess potent activity in treating local and systemic infections, particularly infections caused by sensitive and resistant Gram-positive organism infections, Gram-negative organism infections, mycobacterial infections and nosocomial pathogens, and particularly those belonging to the staphylococcus, streptococcus and enterococcus groups. An address of each document, and preferably of each page of each document, is stored in the controller in successive order and associated with the label signal as the documents are stacked.