The New Encyclopædia BritannicaEncyclopædia Britannica, 1992 |
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Page 226
... eggs , frequently at the in- ternational Zoological Station in Naples . In 1891 he separated the first two cells formed by a dividing sea urchin egg and discovered that each would form a whole larva . A similar experiment had been ...
... eggs , frequently at the in- ternational Zoological Station in Naples . In 1891 he separated the first two cells formed by a dividing sea urchin egg and discovered that each would form a whole larva . A similar experiment had been ...
Page 386
... eggs , for example , are covered by a thick , hard chorion , and the amphibian egg is surrounded by a jelly layer . The bird egg includes the vitelline membrane , the white of the egg , two egg shell membranes , and the outermost ...
... eggs , for example , are covered by a thick , hard chorion , and the amphibian egg is surrounded by a jelly layer . The bird egg includes the vitelline membrane , the white of the egg , two egg shell membranes , and the outermost ...
Page 908
... eggs , and feathers . Chickens , ducks , turkeys , and geese are of primary com- mercial importance , while guinea fowl and squabs are chiefly of local interest . A brief treatment of poultry follows . For full treatment , see ...
... eggs , and feathers . Chickens , ducks , turkeys , and geese are of primary com- mercial importance , while guinea fowl and squabs are chiefly of local interest . A brief treatment of poultry follows . For full treatment , see ...
Contents
14 written for Catherine the Great Observations | 14 |
Consult the INDEX first | 581 |
Didius Julianus marble bust in | 703 |
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19th century American ancient animals army artist became began British called centimetres centre chief Christian church colour courtesy death Demosthenes département deuterium developed Dewey Diocletian district Djibouti Donatello Donets Basin Dorgon Douglas drill Druze Duccio Duke earl early east eastern elected Emily Dickinson England English established feet film France French German Greek House important Indian industrial island Italy John king known land later leader London MACROPAEDIA major Marcel Duchamp ment miles modern Museum National northern novel organized original painting Pāli Paris Party plants played poems poet political popular Prince produced published region River Roman Rome Russian served southern species square miles style tion town United University usually W.E.B. Du Bois western World World War II York York City