Sun Gem (Heliactin cornuta), John Gould Every enthusiastic naturalist, when studying the productions of that vast portion of the globe which we comprehensively term the “Continent of America,” becomes amazed at the prodigality with which Nature has lavished her treasures throughout the temperate and more especially the intertropical regions of that enormous expanse of land. This illustration has been restored to its original vibrancy by enhancing colors and removing unwanted marks. A monograph of the Trochilidæ, or family of humming-birds was published between 1849 and 1887 by English ornithologist John Gould. This monumental work depicts and describes all the known species of hummingbirds at the time - comprising 418 lithographic plates and information on 537 species."