This book provides a comprehensive report on deep-sea deposits based on the specimens collected during the voyage of H M S Challenger in the years 1872 to 1876. Alphonse Francois Renard, John Gibson, and Sir John Murray collaborated to create an authoritative and in-depth account of the varied geological features and marine life found in deep-sea environments. Their observations and findings shed light on previously unknown features of the ocean and will be of interest to scientists, students, and anyone interested in oceanography and marine biology.

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