LONGMANS, GREEN AND CO LTD 



6 & 7 CLIFFORD STREET LONDON W I 



THIBAULT HOUSE THIBAULT SQUARE CAPE TOWN 



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LONGMANS, GREEN AND CO INC 



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LONGMANS, GREEN AND CO 



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ORIENT LONGMANS PRIVATE LTD 



CALCUTTA BOMBAY MADRAS 

 DELHI HYDERABAD DACCA 



First Published . . .1951 



Second Impression . . 1958 



Printed in Great Britain at The Darien Press Ltd., Edinburgh 



