Collier's Encyclopedia: With Bibliography and Index, Volume 12

agricultural allele American animal army became blood born Budapest called cells central century Charles chromosomes Church College color Communist death developed died disease early economic elected Emperor England English Europe famous feet France French gametes genes German Greek heat helicopter Henry Henry IV Heracles Hinduism Holy Roman Emperor Honduras hormones horse housing Hungarian Hungary Hungary's hunters hunting important increased industry island king known land later major ment meters miles modern mountain natural Odysseus organized Paris party percent period philosophy plants poems poet political popular population president pressure produced racing river Roman Romania rotor royal RUTHVEN TODD saddle Shaanxi social Soviet Union species sq km square miles tion tissues United University usually West Western World War II writing York Yugoslavia