(1834â1908), Dutch ophthalmologist. Snellen was director of an eye clinic at Utrecht. In 1862 he introduced a test for measuring the acuteness of vision which consisted of printed letters or words in type of various sizes.
The poppy of wartime remembrance is Papaver rhoeas, the red-flowered corn poppy. This poppy is a common weed in Europe and is found in many locations, including Flanders, which is the setting of the famous poem In Flanders Fields by the Canadian surgeon and soldier John McCrae.
The first was that it goes out of its way to state that opium poppy seeds are, in fact, legal, presumably because of their legitimate culinary uses. There seems to be a chicken-and-egg paradox here, however, in which illegal poppy plants produce legal poppy seeds from which grow illegal poppy plants.