The Bookshelf for boys and girls: Nature and Outdoor Life (1912)
University Society, New York · New York. : University Society · leaf 207
n these and therefore harder to find, is the bell-animalcule (vorti- cella). When full-grown and in comfortable quarters, this is always fixed to some support by means of a long stalk. It has a tiny, roundish body, with a crown of cilia about the upper edge. When disturbed it vanishes like a flash;… … THE BELL-ANIMALCULE.(Vorticella nutans.) & NATURES CURIOSITY SHOP PART II & IV. EARTH AND SKY WHAT IS LIGHT? Men have long known that light is somethingwhich moves from place to place. It takes timefor light to travel. The question, then, was tofind out what was moving. Newton, one of…
Children's literature · Children's encyclopedias and dictionaries · Literature · Encyclopedias and dictionaries
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![An illustration from Tragicomedia de Calisto y Melibea : en la qual se contiene de mas de su agradable y dulce estilo muchas sentencias filosofales : y avisos muy necessarios para mancebos : mostrandoles los engaños q estan encerrados en seruientes [sic] y alcahuetas : y nuevamente añadidos el tractado de Centurio (1502)](https://img.insideoutlibrary.com/img/200/ia-tragicomediadeca00roja-134-32.webp)
