What has the author Ralph Beddard written?

It seems you're asking about Frank E. Beddard, not Ralph Beddard. Frank E. Beddard was a prominent zoologist, and here are some of his notable works:

* "A Text-Book of Zoogeography" (1895): This book laid the foundation for the study of animal distribution, exploring the factors influencing the geographical patterns of animal life.

* "The Structure and Classification of Birds" (1898): This comprehensive work examined the anatomical and evolutionary relationships of birds, offering valuable insights into avian biology.

* "Mammalia" (1902): This book, part of the Cambridge Natural History series, provided a detailed account of mammals, including their anatomy, physiology, and classification.

* "Book of Whales" (1900): Beddard also wrote a book specifically on whales, exploring their biology and natural history.

Beddard's contributions to zoology are significant, and his writings continue to be valuable resources for students and researchers today.

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