. The Earth beneath the sea : History . W" (b) Fig. L5. Fish-bone debris: (a) Diaphane mounting medium, phase contrast. Fish-bone fragments labeled 6 and 48 are teeth, (b) Nuclear emulsion, showing tracks of alpha particles emitted from fish debris, [(b) from Picciotto and Arrhenius, impublished.]

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Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom