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PREFACE M y hearty thanks To

one way left me indebted to them.

a re due to Professor J . F r a n k l i n J ameson for his c r i t i cal r eading of the M S . and for his suggestions. ful f or corrections made i n the proof. D r . L o u i s H . Gray and M r . C. C. W h i n e r y I am grateI w i s h also to t hank m y publishers for their readiness to comply w i t h s uggestions and for their constant courtesy. L astly, i f the book has any merit, it is largely due t o Idealie M arie M cCaleb, whose interest i n it sprang u p under peculiar circumstances, whose labors on i t w ere m any-natured, and whose faith i n it has never w avered.
WALTER
WASHINGTON SQUARE, M a r c h 2 5,

FLAVIUS

MCCALEB.

1903.