Invitation for proposals to furnish air compressors, feed-water heater, grease extractor, hot-water meters, revolution counters, gauges, ejectors, oil cups, cocks, gate valves, cast-iron pipe and fittings, repair parts for pipe-line dredge, shafting, sheet zinc, cap and lag screws, anvils, chisels, stock dies, saw blades, hoes, peavies, grindstones, carborundum wheels, sprinkling cans, demijohns, slip and wheeled scrapers, canvas belting, magnesia pipe covering, spelter, sea-coal facing, lead-color paint, school desks and seats, oak lumber, et cetera.