The New Encyclopaedia Britannica: Macropaedia: knowledge in depth. 19 vEncyclopaedia Britannica, Incorporated, 1981 - Encyclopedias and dictionaries |
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Page 75
... complete or emargi- nate , but without true fenestrae . 18 presacral vertebrae , typically 8 cervicals and 10 dorsals ; 2nd to 8th dorsals fused to neural elements of carapace ( when present ) . Shoulder girdle internal to ribs and ...
... complete or emargi- nate , but without true fenestrae . 18 presacral vertebrae , typically 8 cervicals and 10 dorsals ; 2nd to 8th dorsals fused to neural elements of carapace ( when present ) . Shoulder girdle internal to ribs and ...
Page 628
... complete , and in the lungless salamander , as already remarked , it has dis- appeared entirely . In none of these amphibians is a ventricular septum found . Yet the conus arteriosus , which is more compact than in fishes , typically ...
... complete , and in the lungless salamander , as already remarked , it has dis- appeared entirely . In none of these amphibians is a ventricular septum found . Yet the conus arteriosus , which is more compact than in fishes , typically ...
Page 629
Complete separation of the atria in reptiles 1 " I 1/1 IV V VI left subclavian artery -left systemic arch Support for reptilian origin of birds Curious vestiges in amphibians. fore the renal portal veins enter the kidney , each gives ...
Complete separation of the atria in reptiles 1 " I 1/1 IV V VI left subclavian artery -left systemic arch Support for reptilian origin of birds Curious vestiges in amphibians. fore the renal portal veins enter the kidney , each gives ...
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acid activity administration ammonia army atomic orbitals became benzene bonds Buddhist called carbon atoms cells central centre Ceylon Ch'in Chaetognatha Charadriiformes Charles Chaucer chemical bond chemical reactions chemistry chemoreception Chess Chicago children's literature Chile China Chinese chloride Chou common complex compounds covalent covalent bonds cultural disease drugs dynasty early economic electrons elements emperor energy example fluorine groups hydrogen important increased industry insects involved ions isotopes king known land large number Lo-yang major mass materials ment metal methods molecular molecules nitrogen northern nuclei occur officials orbitals organic oxide oxygen party percent period political population provinces quartets reactants receptors region reign result river separation Shang shell Sinhalese social sodium sodium chloride solution southern species structure substances sulfonamide sulfur sulfuric acid Szechwan T'ang Taoist temperature tion Tsung turtles Yangtze