There's antimony, arsenic, aluminum, selenium And hydrogen and oxygen and nitrogen and rhenium And nickel, neodymium, neptunium, germanium And iron, americium, ruthenium, uranium Europium, zirconium, lutetium, vanadium And lanthanum and osmium and astatine and radium And gold, protactinium and indium and gallium And iodine and thorium and thulium and thallium There's yttrium, ytterbium, actinium, rubidium And boron, gadolinium, niobium, iridium And strontium and silicon and silver and samarium And bismuth, bromine, lithium, beryllium, and barium There's holmium and helium and hafnium and erbium And phosphorus and francium and fluorine and terbium And manganese and mercury, molybdenum, magnesium Dysprosium and scandium and cerium and cesium And lead, praseodymium and platinum, plutonium Palladium, promethium, potassium, polonium And tantalum, technetium, titanium, tellurium And cadmium and calcium and chromium and curium There's sulfur, californium and fermium, berkelium And also mendelevium, einsteinium, nobelium And argon, krypton, neon, radon, xenon, zinc and rhodium And chlorine, carbon, cobalt, copper, tungsten, tin and sodium These are the only ones of which The news has come to Harvard And there may be many others But they haven't been discovered