General guide to the exhibition halls of the American Museum of Natural History . GLASS MODEL OF A TYPICAL RADIO- LARIAN. These tiny floating marine creaturesmake glassv shells of intricate patterns and, whenthev die, sink to the sea-bottom to form radiolarianooze, a flintv sand used for polishing preciousstones )DEL OF A ROCK-FORMING PROTO- \N (Globigerina). The microscopic creatur;ivn above builds tinv shells from lime dissolvedea water. These become compacted into lime-e layers on the sea-bottom. The Chalk CliffsDover are composed of elevated masses of thisrock. LARGED MODEL OF THE PLUMEDWO
General guide to the exhibition halls of the American Museum of Natural History . GLASS MODEL OF A TYPICAL RADIO- LARIAN. These tiny floating marine creaturesmake glassv shells of intricate patterns and, whenthev die, sink to the sea-bottom to form radiolarianooze, a flintv sand used for polishing preciousstones )DEL OF A ROCK-FORMING PROTO- \N (Globigerina). The microscopic creatur;ivn above builds tinv shells from lime dissolvedea water. These become compacted into lime-e layers on the sea-bottom. The Chalk CliffsDover are composed of elevated masses of thisrock. LARGED MODEL OF THE PLUMEDWORM (Diopatra) GLASS MODEL OF THE PORTUGUESEMAN-OF-WAR IN THE DARWIN HALL sand of the shore while others bore intowood and shells. Their body structures areoften vcrv beautiful and interesting examplesof ingenious to, Arthropods. Here are includedthe familiar crabs, lobsters, mvriapods, in-sects, spiders and their relatives. The numberof existing species in this group is greaterthan that of all the rest of the animal king-dom. On the wall are the two largest lobstersever taken. They weighed when alive thirty-one and thirty-four pounds, largest of the arthropods is the giantcrab of Japan, which, like that placed on thewall, may have a spread of about ten feet. \ series of models of insect heads, care-fully wrought in wax and glass, shows, great-ly enlarged, their comparative 11, Mollusks. The mollusks are nextto the arthropods in the diversity and vastnumber of forms which they embrace, in-cluding marine, fres
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Keywords: ., bookcentury1900, bookdecade191, booksubjectnaturalhistorymuseums
