| ORIGINOFSPECIES | On the _ _ _ : 1859 scientific work that introduced the theory that populations evolve through natural selection (6,2,7) |
| MUTATE | Evolve through change |
| MALTHUS | English economist who argued that population growth will eventually exceed Earth's ability to provide food (7) |
| DARWIN | Charles ?, author of 1859 scientific work On the Origin of Species by Means of Natural Selection (6) |
| ARRHENIUS | Svante August ___, (1859-1927), Swedish chemist and physicist noted for his work on the theory of electrolytic dissociation and his model of the greenhouse effect: Nobel Prize for Chemistry 1903 (9) |
| ARISTARCHUS | ___ of Samos, ancient Greek astronomer who advanced the theory that the earth revolves around the su |
| OSTEOPATHY | System of healing based on the theory that some disorders can be treated by manipulation of the skeleton (10) |
| HOUSETOP | "up on the ___ ___": christmas tune that goes "Down through the chimney with lots of toys..." |
| ERASTIANISM | The theory that the state should have authority over the church (11) |
| JCURVE | The theory that the Internal Rate of Return of a fund will be low in its early stages (1-5) |
| LAMARCKISM | The theory that characteristics acquired during an animal's lifetime can be passed on to its offspring |
| GRAHAME | Kenneth ___ (1859-1932), Edinburgh born writer of The Wind in the Willows (1908) (7) |
| SEURAT | Georges ___ (1859-91), French painter who founded the Neo-Impressionist movement and pioneered the technique of pointillism (6) |
| HUSSERL | Edmund ___ (1859-1938), German philosopher who developed the scientific system of phenomenology (7) |
| HUBBLESLAW | Key principle behind the theory that the universe is expanding |
| PETERPRINCIPLE | The theory that members of a hierarchy rise to their level of incompetence |
| ORIGIN | On the - of Species, scientific work by Charles Darwin (6) |
| ARIZONAPLAIN | Gino Vannelli's "Wild Horses" start: "As the sun goes down on the ___ ___..." |
| CHAINGANG | Back on the ___ ___: song written by Chrissie Hynde and released by her band, The Pretenders, in 1982 (5,4) |
| ROOF | "I sat on the _ _ _ _ and kicked off the moss', from Elton John's "Your Song" (4) |
