A. S. PACKARD, JR., AND EDWARD D. COPE. ASSOCIATE EDITORS: PROF. C. E. BESSEY, DEPARTMENT OF BOTANY. VOLUME XV. PHILADELPHIA: PRESS OF MCCALLA & STAVELY, 1881. CONTENTS. The Ancient Glaciers of the Rocky Mountains... The Discovery of Iron Implements in an Ancient Mine in North An Address to the Fossil Bones in a Private Museum.. Incomplete Adaptation as illustrated by the History of Sex in A Partial Biography of the Green Lizard The Bee's Tongue and Glands connected with it Observations on the Salmon of the Pacific.. The Siphonophores. [II -The Anatomy and Development of Agalma-continued from p. 630, Vol. xiv.]. The Relation of Apiculture to Science. . . Glacial Phenomena in the Yellowstone Park.. A Collector's Notes on the Breeding of a few Western Birds. The Fertilization of Salvia splendens by Birds.. On the Origin of the Foot Structures of the Ungulates. Progress of Invertebrate Palæontology in the United States for the 37 The Reasoning Faculty of Animals. Progress of Anthropology in America during the year 1880. Variations in a Copepod Crustacean,. Scolopendrella and its Position in Nature. American Work in the Department of Recent Mollusca during the Notes on the Codex Troano and Maya Chronology... On the Development of the Stomata of Tradescantia and Indian Notes on the Early Larval Stages of the Fiddler Crab and of Reason-A Psychological Distinction.. On the Microscopic and General Characters of the Peach Tree Cyrus Thomas. 7. Walter Fewkes. R. Ellsworth Call A Sketch of the Progress of Botany in the United States in 1880. C. E. Bessey. Effects of Reversion to the Wild State in our Domestic Animals. 3. D. Caton. The United States Geological Survey, 39; Lack of Naturalists in large cities, 41; Academies RECENT LITERATURE. The Naturalists' Directory for 1880, 42: Shell Heaps in Japan, 43: The Botany of California, cent Books and Pamphlets, 730; Hyatt's Genesis of the Tertiary species of Planorbis at Stein- Botany.-Relation of Elevation to Change of Color in Flowers, 52; Insect-destroying Fungi, 52; Bennett's Classification of the Cryptogams, 53; Botanical Notes, 54; The Fungi which pro- duce Mildew on Cotton Goods, 132; Allen's Characeæ Americanæ Exsiccatæ, 133; The Pep- peridge Tree in Maine, 134; Histology of the Pumpkin Stem, 134; Fertilization of Aquilegia, 134: Progress of Botany in the United States, 135; Botanical Notes, 135; Variations in the Growth of the Virginia Creeper and Hickory, 227; The Compositæ, 227; The Sensitiveness of the 1001. Zoology.-Notes on the Land-shells of Dominica, 56; Breeding Habits of the European as Compared with those of the American Oyster, 57; Change in the Nervous System of Beetles during Metamorphosis, 58; A New Genus of Catostomidæ, 59; Cellular Irritability, 59; Budding in Free Medusæ, 59; Zoölogical Notes, 60; Description of a Hermaphroditic Phyllopod Crustacean (Eubranchipus), 136; Habits of the English Sparrows in the United States, 139; Intelligence in a Cat, 140; Curious Habit of a Dragon-fly, 141; Migrations of the Sand-hill Crane, 141; Zoö- logical Notes, 142; Dredgings in the Bay of Biscay, 230; Fauna of the Luray and Newmarket Caves, Virginia, 231; A rare Fish in Illinois, 232; The Japanese Lap-dog. 233; The Epidemic among Marine Fishes, 234; The Lac Insect, 235; Deep-water Fauna of the Swiss Lakes, 235; The Poison Apparatus of Spiders, 236; Deep Dredgings in the Lake of Tiberias, 236; Fresh- water Microscopic Organisms, 237; Zoological Notes, 237; Value of the House Wren as an In- sect Destroyer, 318; Our Social Blue-jays, 319: Zoological Notes, 319; New Texan Unio, 390; Note on Succinea campestris and S. aurea, 391; The English Sparrow in Illinois, 392; The Red- winged Starlings, 393: The Indigo Bird, 394; Zoological Notes, 394; More about that Cat, 475; Birds out of Place, 476; A Hawk New to the United States, 477; Curious Instance in the Breed- ing Habits of the Blue-bird, 478; Zoological Notes, 478: The king snake (Ophibolus sayi) sups on a full grown water moccasin (Ancistrodon piscivorus), 561; Survival of wild habits in domesticated Cattle, 563, A Dog's discrimination of Sounds, 563; Discoveries in the Anatomy of Crustacea, 564; Effects of different colored light on the growth of Animals, 564; Zoological Notes, 564; Brief Notes on some Iowa Birds, 653; The Organs of Smell in Land Snails, 655; The Structure of the Orang Outang, 655; Marine Animals in Aquaria, 656; The Eye-like Organs of the Skin of Certain Fishes, 657; Mason's Microscopic Studies on the Central Nervous System of Reptiles and Ba- trachians, 657; The Jelly Fishes of Narragansett bay, 658; Zoological Notes, 658; A Shower of Cyclops quadricornis, 736; Mussel and Insect Climbers, 737; A Woodchuck climbs a Tree, 737; Carphophiops helenæ in Indiana, 738; Eutænia radix in Indiana, 738; Habits of the Yellow-bel- |