Science: v.1-v.219Moses King, 1967 |
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Page 1373
... Lepidocrocite , an Apatite Mineral , and Magnetite in Teeth of Chitons ( Polyplacophora ) Abstract . X - ray diffraction patterns show that the mature denticles of three extant chiton species are composed of the mineral lepidocrocite ...
... Lepidocrocite , an Apatite Mineral , and Magnetite in Teeth of Chitons ( Polyplacophora ) Abstract . X - ray diffraction patterns show that the mature denticles of three extant chiton species are composed of the mineral lepidocrocite ...
Page 1374
... lepidocrocite , and dahllite were in- cluded for comparison ( 8 ) . The diffraction photograph of the black material ( Fig . 3 ) checks that of magnetite and of the orange - red ma- terial , lepidocrocite , in both spacing and intensity ...
... lepidocrocite , and dahllite were in- cluded for comparison ( 8 ) . The diffraction photograph of the black material ( Fig . 3 ) checks that of magnetite and of the orange - red ma- terial , lepidocrocite , in both spacing and intensity ...
Page 1375
... lepidocrocite are new to chiton precipitates . The identifica- tion of lepidocrocite is of particular interest , because this is the first time that this mineral has been observed as a biologic precipitation product . The Chitonidae in ...
... lepidocrocite are new to chiton precipitates . The identifica- tion of lepidocrocite is of particular interest , because this is the first time that this mineral has been observed as a biologic precipitation product . The Chitonidae in ...
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acid activity alcohol dehydrogenase American analysis animals antheridia atomic auxin behavior Biochem Biol biological cancer carbon carbon dioxide cells Center Chem chemical Chemistry concentration cores culture cycloheximide denticles EDTA effect electron energy engineering enzyme experimental experiments factor faunal females ferrichrome Foraminifera fraction galactose growth ibid Illus increase incubation indicated inhibition instrument ions isotope laboratory lepidocrocite leucine light magnetic male marker cards material measured Medical ment molecules neutron nuclear observed optical oxygen papers particles percent Physiol plant polarity present problems production protein Q-sort R. A. Fisher range rats References and Notes relative reported response s-process sample Science scientific sedimentation serum sodium species spermatophore strophanthidin structure sulfate surface synthesis Table temperature tion ture Univ University uridine kinase values York zodiacal light