Numismatist noted numismatist who was not an avid collector, and King Farouk I of Egypt was an avid collector who had very little interest in numismatics. Harry Bass by comparison was a noted collector who was also a numismatist. The second group are the coin dealers. Often called professional numismatists, they authenticate or grade coins for commercial purposes. The buying and selling of coin collections by numismatists who are professional dealers advances the study of money, and expert numismatists are consulted by historians, museum curators, and archaeologists. See, for example, the International Association of Professional Numismatists (IAPN) and the British Numismatic
Nature study in the country, which helped gather support from parents and educators in the country. Anna Botsford Comstock, stated in her book "Handbook of Nature Study", "nature-study cultivates the child's imagination, since there are so many wonderful and true stories that he may read with his own eyes, which affect his imagination as much as does fairy lore, at the same time nature study cultivates in him a perception and a regard for what is true, and the power to express it...Nature study gives the child practical and helpful knowledge. It makes him familiar with nature's ways and forces, so that