| ERNSTMACH | Austrian physicist and philosopher who devised a system of speed measurement |
| MACH | Ernst ___, Austrian physicist and philosopher who devised a system of speed measurement |
| LABAN | Rudolf von --, choreographer and dance theorist who devised a system of dance notation (5) |
| DEWEY | American librarian who devised a system of book classification (5) |
| MATCH | Possible partner for Austrian physicist and philosopher? About time (5) |
| OGDEN | Linguist and philosopher who created Basic English as a simplified system of the English language based on 850 words (5) |
| FAHRENHEIT | Scientific instrument maker and physicist who devised a temperature scale to go with his invention of the mercury-in-glass thermometer (10) |
| ALANTURING | British mathematician and computer scientist, 1912-1954, who devised a test of a machine's ability to demonstrate human-like intelligence (4,6) |
| PITMAN | Who (Sir Isaac ___) devised a system of shorthand? (6) |
| BLAISE | 17th Century French mathematician and philosopher who developed the theory of probability with Pierr |
| PASCAL | 17th Century French mathematician and philosopher who developed the theory of probablity with Pierre |
| SENECA | Roman statesman and philosopher who was and advisor to Nero (circa 4 BC - 65 AD). |
| EDMUNDBURKE | Irish statesman and philosopher who criticised Britain's treatment of its American colonies |
| LEIBNIZ | Gottfried Wilhelm von ___, German mathematician and philosopher who developed calculus independently of Isaac Newton |
| OCKHAM | William of Franciscan friar and philosopher who died in 1349 (6) |
| LUCRETIUS | Roman poet and philosopher who authored On The Nature Of Things (9) |
| ROGET | English physician who devised a classified list of synonyms (5) |
| GEIGER | Hans ___, German physicist who devised a counter to measure radiation in 1908 (6) |
| BEAUFORT | Francis -, British rear admiral who devised a scale of wind velocities in 1805 (8) |
| GALLUP | George, US statistician who devised a type of opinion poll (6) |