Incluye referencias bibliográficas.

1st section: Animal evolution on islands / Alden H. Miller -- Variation and adaptation in Galápagos plants / G. Ledyard Stebbins -- Adaptive radiation in land birds of oceanic archipelagoes / Dean Amadon -- Geology of the Galápagos Islands / Howel Williams -- Petrology of the Galápagos Islands / Alexander R. McBirney -- Continental drift in the southern hemisphere / Allan Cox -- The climatological setting of the Galápagos Islands / Clarence E. Palmer & Robert L. Pyle -- Remarks on the islands of the eastern Pacific between San Francisco and the Galápagos / George A. Bartholomew -- The influence of access routes, physical barriers, thermal conditions, and reproductive phenomena on the composition and zoogeographic affinities of the shallow-water benthic invertebrate fauna of the Galapagos / Donald P. Abbott. 2nd. section: Coelenterates, especially stony corals, from the Galapagos and Cocos Islands / J. Wyatt Durham -- Marine crustacea of the Galápagos Islands / J. Laurens Barnard -- The macromolecular toxins of sea anemones / Edgar J. Martin -- Biogeographic affinities of the Balanomorpha / Victor A. Zullo -- Status of our knowledge of the Galápagos benthic marine algal flora / Paul C. Silva -- The symbiosis between sea anemones and fishes / Richard N. Mariscal -- The origins and affinities of the Galápagos shore fishes / Boyd W. Walker -- Possible utilization of solar energy on the Galápagos Islands / Farrington Daniels -- Lichenology in the Galápagos Islands / William A. Weber -- Study of a soil sequence on Isla Santa Cruz / Jacques Laruelle -- Problems on the origin, dispersal and establishment of the Galápagos cottons / Stanley G. Stephens and Charles M. Rick -- Some plant-animal relationships on the Galápagos Islands / Charles M. Rick -- Cacti in the Galápagos Islands, with special reference to their relationship with tortoises / Yale E. Dawson -- Origins and relationships of the flora of the Galápagos Islands / Ira L. Wiggins -- Botany of Cocos Island / Luis A. Fournier. 3rd. section: Comparative behavior of pollinating insects on the Galápagos Islands and in continental desert regions / E. Gorton Linsley -- Evolution of insect faunas on oceanic islands / Robert L. Usinger and Peter D. Ashlock -- Relationships of the insect fauna of eastern Pacific islands; and Physical environments of the eastern Pacific Islands south of the equator / G. Kuschel -- Evolutionary problems of mite-host specificity and its relevance to studies on Galápagos organisms / Paul H. Vercammen-Grandjean -- Composition and evolution of the land mollusks of the Galápagos / Allyn G. Smith -- The Galápagos tortoises, Geochelone Fitzinger 1835 (Testudo Linnaeus 1758 (part)) / John R. Hendrickson -- Influence of the parietal eye on activity in lizards / Robert C. Stebbins and Daniel C. Wilhoft -- Species and individual variations in iodine metabolism / Jerold M. Lowenstein and Francis S. Greenspan -- Comparative behavior of the lava lizards (Tropidurus) of the Galápagos Islands / Charles C. Carpenter -- Evolutionary aspects of the mammalian fauna of the Galápagos / Robert T. Orr -- Problems of conservation and economical development of the Galápagos / Misael Acosta-Solís -- Economic resources of the Galápagos Islands / Carl B. Koford -- The oceanic volcanic island ecosystem / F. R. Fosberg -- Distribution of marine borers in the tropical eastern Pacific Ocean / Robert C. Miller -- The behavior of animals in their natural environments / Nikolaas Tinbergen.

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