The New Encyclopædia Britannica in 30 Volumes: Macropædia : Knowledge in Depth. - 19 Bd, Volumes 1-19Encyclopædia Britannica, 1974 |
From inside the book
Results 1-3 of 6
Page 15
... Pelecaniformes The order Pelecaniformes comprises a number of diverse groups of aquatic birds that share the common characteristic of webbing between all four toes . There are three main groups ( suborders ) : Phaethontes , the tropic ...
... Pelecaniformes The order Pelecaniformes comprises a number of diverse groups of aquatic birds that share the common characteristic of webbing between all four toes . There are three main groups ( suborders ) : Phaethontes , the tropic ...
Page 19
... Pelecaniformes is based mainly on morphothe genera Sula ( the earliest S. ronzoni , lower Oligocene of logical features . Recent attempts have been made to clari- France ) , Microsula , Morus , Palaeosula and Miosula . Two exfy ...
... Pelecaniformes is based mainly on morphothe genera Sula ( the earliest S. ronzoni , lower Oligocene of logical features . Recent attempts have been made to clari- France ) , Microsula , Morus , Palaeosula and Miosula . Two exfy ...
Page 20
... Pelecaniformes and may well be wrongly placed in this order . They are united to the others primarily by the totipalmate condition , but the first toe in Phaethontes is distinctly more elevated on the tarsometatarsus than in the other ...
... Pelecaniformes and may well be wrongly placed in this order . They are united to the others primarily by the totipalmate condition , but the first toe in Phaethontes is distinctly more elevated on the tarsometatarsus than in the other ...
Other editions - View all
Common terms and phrases
activity America animals appear areas atoms became become body called camera century changes chemical Church colour common complete compounds consists containing continued drugs early effect electrons elements energy example existence experience Family field Figure fins fishes human important increase individual industry islands Italy known later less light liquid living lower major material means ment methods movement natural North occur organic original Peking Pentecostal percent period Persian personality pest Peter petroleum phase Philip philosophy photographs plant political position possible practice present pressure printing problems production Quakers range region remains result rocks similar social South species structure surface temperature theory tion United University usually widely