xvi CONTENTS. 
Arctogoea ... sie ia 600 
Madagascar Region 602 
Ethiopian Region 603 
Oriental Region ... 604 
Holarctic Region 606, 
Sonoran Region .. 607 
Discontinuous Distribution 609 
610 
Mammalian Evolution ... es sie ore we eae 
Index sice oe ee ae bik dia ade sn (OLS, 
