CONTENTS
PAGE
Introduction [555]
Methods and Materials [556]
Myology and Angiology: Hirundinidae [557]
Myology [557]
Angiology [558]
Myology and Angiology: Columbidae [560]
Myology [560]
Angiology [560]
Summary of Arterial Arrangement [562]
Discussion and Conclusions [562]
Individual Variation [562]
Intrafamilial Differences [563]
Interfamilial Differences [565]
Summary [567]
Literature Cited [573]