George Windsor Earl the Physical Geography of South-Eastern Asia and Australia", published in 1845, described how shallow seas connected islands on the west (Sumatra, Java, etc.) with the Asian continent and with similar wildlife, and islands on the east such as New Guinea were connected to Australia and were characterised by the presence of marsupials. This formed the insipiration for Alfred Russel Wallace to propose the faunal boundary line now known as the Wallace Line. He published a paper in 1850 that invented the term 'Indu-nesians', for a quaint racial classification, derived from the Latin for India and island. He published a seminal
Simson line that formula_2. formula_3 is a cyclic quadrilateral, so formula_4. formula_5 is a cyclic quadrilateral (Thales' theorem), so formula_6. Hence formula_7. Now formula_8 is cyclic, so formula_9. Therefore formula_10. Simson line In geometry, given a triangle "ABC" and a point "P" on its circumcircle, the three closest points to "P" on lines "AB", "AC", and "BC" are collinear. The line through these points is the Simson line of "P", named for Robert Simson. The concept was first published, however, by William Wallace in 1797. The converse is also true; if the three closest points to "P" on three lines are collinear,