Wright's "Acknowledgments to Residents" provide a fascinating portrait of the human context of his research. Wright goes on to outline the status of explorations of the region and offers an extensive general discussion of the Okefenokee and its frogs, including habitats, range, coloration, measurements, vocalization, mating, structural differences, ovulation, life periods, tadpoles, growth rates, food, and predators. The book's species accounts give clear and extensive details about the species found in Georgia, still applicable today to frogs throughout the East Coast of the United States.

New material by J. Whitfield Gibbons highlights appreciation for Wright's work in the context of amphibian studies today and puts into perspective the value of the Okefenokee Swamp as a nature preserve and as a refuge for native amphibian fauna now in serious decline. It updates common and scientific names and notes the current status of all taxa. Gibbons provides a history of the Cornell Expeditions and mentions the importance and later influence of some of the students who took part.