From the nature of this work, a certain amount of polemic was inevitable; but I trust that not a line will be found which contains anything which could be offensive to the living, or is disrespectful to great scholars now no more. I owe so much to the works of distinguished men, from whose principles I am obliged to dissent, that I feel myself almost an ingrate who assails his benefactors with the very means provided for him by their labours.
It now only remains for me to thank many friends, who have aided me and taken an interest in this work.
To Mr J. G. Frazer, Fellow of Trinity College, Cambridge, I am under obligations which I cannot adequately express in words. He has read through the proofs of the whole of this work, and there is scarcely a page which has not benefited from his most careful and acute criticism. Besides this his vast knowledge of the manners and customs of barbarous peoples has furnished me with many most valuable references, and his fine Ethnological Library has been ungrudgingly placed at my disposal. Professor W. Robertson Smith has read the proofs of those pages which deal with Semitic systems, and Prof. J. H. Middleton those treating of the Greek.
By their kind sacrifice of time and labour which have been robbed from important works of their own, the many shortcomings of this book have been rendered far less numerous than they otherwise would be, but of course I alone am responsible for the manifold ones which remain.
I must also express my gratitude to Mr Head, Mr Wroth and Mr Grueber of the Coin Department of the British Museum for their kindness and courtesy in affording me every facility for studying the coins under their charge.
I have to thank the Syndics of the Cambridge University Press for having undertaken the publication of this work.