| LEUCIPPUS | 5th-century BC Greek philosopher who devised the atomic theory of matter, further developed by his pupil Democritus (9) |
| DALTON | Which chemist developed the law of partial pressure of gases and the atomic theory of matter? (6) |
| HUSH | AA Milne repeatedly told us to do this (whisper, who dares?) when Christopher Robin was saying his p |
| ATOM | Fifth-century BC Greek philosophers first suggested the existence of what small thing? (4) |
| ASDIC | Created towards the end of First World War and further developed by the Royal Navy, a British version of Sonar (5) |
| PROUT | William ___, English chemist noted for his modification of the atomic theory in the early 19th century |
| FLEMING | Scottish bacteriologist whose discovery of penicillin and its effects was further developed by Howard Florey and Ernst Boris Chain (7) |
| DEMOCRITUS | Greek philosopher who developed the atomist theory of matter of his teacher, Leucippus (10) |
| ELGIN | The - Marbles, group of 5th-century BC Greek sculptures housed in the British Museum (5) |
| IKTINOS | 5th-century BC Greek architect who designed the Parthenon in Athens alongside Callicrates and the sculptor Phidias (7) |
| ELGINMARBLES | A group of 5th Century BC Greek sculptures originally produced to decorate the Parthenon in Athens (5,7) |
| AESCHYLUS | 5th-century BC Greek tragedian who wrote The Oresteia (9) |
| ODYSSEUS | Mythological Greek hero who devised the stratagem whereby he and a band of warriors were able to sneak through the gates of Troy in a wooden horse (8) |
| HESIOD | 8th century BC Greek poet who was the earliest author of didactic verse |
| MYRON | 5th century BC Greek sculptor born in Eleutherae (5) |
| PERICLES | 5th century BC Greek statesman |
| HERO | - of Alexandria; ancient Greek credited with inventing the first vending machine who also devised the aeolipile and a way to determine the area of a triangle (4) |
| JENNER | Edward ___, who devised the first successful vaccine and pioneered the science of immunology (6) |
| SKINNER | B.F., U.S. behavioural psychologist who devised the --- box for studying the learning capacity of animals (7) |
| ANATOMIST | A new believer in atomic theory, or of the structure of the body (9) |
