 An inquiry concerning the source of the heat which is excited by friction by Benjamin Thompson

By Benjamin Thompson, credited as Benjamin Count of Rumford. Philosophical Transactions of the Royal Society of London 88, 80–102. DOI: doi.org/10.1098/rstl.1798.0006. Original paper scan hosted by the University of Notre Dame; read 25 January 1798. Inspected Experiment No. 3 and the metal-chip/strip calorimetry control near the beginning. OCR is imperfect; the experiment number is the primary locator.