CONTENTS 



Page 



Introduction 1 



Materials and methods 2 



Stages of molt 5 



Molt in relation to age, sex, and season 5 



Persistence of old-generation guard hairs after the molt 15 



Persistence of old-generation underfur fibers after the molt 19 



Changes in depth of the pelage 22 



Changes in color of the pelage 24 



Changes in the dermis 25 



Comparison of pelage, male and female, back and belly 29 



Summary „ 32 



Acknowledgments 33 



Literature cited 33 



111 



