14 CONTENTS. 



Chapter XVI. — The glacial Lake Waeren — Continued. Page. 



The withdrawal from Lake Warren to Lake Ontario 771 



Lake Dana (Lake Lundy?) 771 



Lake Iroquois 77-1: 



Chapteb X VII.— Soils 776 



Sources of soil material 776 



Classes of soil 777 



Residuary soils 779 



Stony clay soils 779 



Gravelly or stony soils 779 



Sandy soils 780 



Silty soils 780 



Peaty or organic soils 781 



