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.