I. Earth Building. II. The First Continent. III. The Age of Crabs and Corals. IV. The Pines and the Reptiles. V. The Palm and the Man. VI. The Starry Heavens. VII. A Fragment of the Milky Way. VIII. Plan and Progression. IX. The King of the Day. X. The Queen of the Night. XI. Vanished Fauna. XII. A Mountain of Fossils. XIII. Written in Rocks. XIV. Footprints in the Sand. XV. The Winter of the World. XVI. Fossil Crabs. XVII. Stone-Fish and Stone-Lilies. XVIII. Long-Buried Reptiles. XIX. Birds of other Ages. XX. The Early Mammals. XXI. Very Old Families. XXII. The Marvel in Mail. XXIII. The Wonderful Builder. XXIV. An Opossum Hunt. XXV. A New Fashion of Pappoose. XXVI. Low Down in the Scale. XXVII. With a Duck’s Bill. XXVIII. In Australian Rivers. XXIX. A Walk Among Wonder Trees. XXX. Still in the Wonder Grove. XXXI. A Noisy Family. XXXII. The Frogs’ Cousin. XXXIII. Salamanders. XXXIV. A Citizen of the Marsh Lands. XXXV. A Stranger from Mexico. XXXVI. Some Merry Little Friends. XXXVII. The Ancient Monster. XXXVIII. El Lagarto. XXXIX. Wiser than any Beast of the Field. XL. Our Common Enemy. XLI. With a House on His Back. XLII. A Real Live Mermaid. XLIII. Great Whales Also. XLIV. A Seal-Skin Cloak. XLV. Flying Mammals. XLVI. Order out of Confusion. XLVII. Nibblers. XLVIII. Gnawers. XLIX. The Thick Skins. L. The Ruminants. BOOK IV. 370 pages. 28 illustrations. 60 cents. RICKS’ NATURAL HISTORY OBJECT LESSONS. PART I.--PLANTS AND ANIMALS. CHAPTER. I. Introduction. II. A Typical Plant. III. General Classification of Plants. IV. Minute Structure of Plants. V. Roots and their Functions. VI. Stems and their Uses. VII. Leaves and Buds. VIII. Flowers, their Parts and Uses. IX. Fruits and Seeds. X. The Palm Trees. XI. Cereals, the Sugar-Cane, etc. XII. Starches. XIII. Oils and Fats. XIV. Gums, Resins, Gum-Resins, etc. XV. Cotton, Hemp, Flax, Jute. XVI. Paper. XVII. Bleaching and Dyeing. XVIII. Tea, Coffee and Chocolate. XIX. Spices. XX. Opium, Quinine and Camphor. XXI. Indigo, Oak-Galls, etc. XXII. Classification of Animals. XXIII. and XXIV. Classification of Vertebrata. XXV. Classification of Invertebrata. XXVI. Coverings of Vertebrate Animals. XXVII. The Bony Skeleton and its Modifications. XXVIII. Teeth,--Varieties and Uses. XXIX. Tongues. XXX. Tails and their Uses. XXXI. The Principal Internal Organs of Animals. PART II.--SPECIMEN LESSONS. LESSON.