Edmond Halley (1656-1742) — Integration specialty. Astronomer, mathematician, and the integration partner whose work made Newton's Principia possible. Halley spent two years personally badgering Newton to finish the manuscript, paid for the publication out of his own pocket when the Royal Society's funds were exhausted on an unrelated fish-illustrations book, edited and proofread the entire text, and took on the diplomatic work of defending the Principia against Hooke's priority claims and explaining its arguments to scientists across Europe who could not follow the notation. Halley also did original discovery work — predicting the return of the comet that bears his name, mapping prevailing winds from his own ship voyages, calculating actuarial life tables — but his civilizational impact came from the integration labor that turned Newton's discovery into the published foundation of classical physics. Without Halley, the Principia dies in a drawer at Cambridge. With him, it became the most influential scientific work of the modern era. The discovery specialty produces the discovery; the integration specialty turns the discovery into something the species can actually use. Halley is one of the cleanest historical demonstrations of why both specialties have to be honored in any account of how science gets done.