One of the most salient points of similarity between the several families of Aryan myths concerns those which are called solar legends. In all of these we read of children fated to slay their fathers, of strong giants condemned to obey the rule of feeble princes, of heroic young men forced to quit their first love for another woman. The heroes of these stories are marked out in their cradle by miraculous signs and wonders, or are suckled by wild beasts in the absence of their parents; in their youth they slay serpents sent to destroy them; in their manhood they shine forth as conquerors. Their death is not unfrequently caused by slight and unforeseen, though fated, occurrences--by a weapon that strikes the only vulnerable part of their body, in the case of Achilles and Siegfried; by a twig of mistletoe, in the case of Balder; by a thorn, in the case of Isfendiyar; by an envenomed mantle, in the case of Herakles. One great mythus fascinated the imagination of Norsemen and Hindoos, Greek and Persian, German and Roman; interwove itself with their history; gave a form to their poetry; and assumed a prominent place in their religion. So far, it may be said that comparative philology has established something solid, which is at the same time of vast importance for the student of prehistorical antiquity. It is also not improbable that these legends referred originally to the vicissitudes of the sun in his yearly and daily journeys through the heavens. Thus much may be conceded to the solar theorists, remembering always that this primitive astronomical significance, if it existed, was forgotten by the races for whom the myths became the material of poetry and religion. But, unfortunately, the discovery has been strained beyond its proper limits by students who combine a solar theory with the linguistic in their interpretation of mythology. In their hands all the myths are made to refer to the sun and the moon, to dawn and evening. "The difficulty," says Max Müller, "which I myself have most keenly felt is the monotonous character of the dawn and sun legends. Is everything the dawn? is everything the sun? This question I had asked myself many times before it was addressed me by others." How consistently Professor Max Müller found himself obliged to answer this question in the affirmative is known to every student of his works, not to mention those of Mr. Cox. The hand-books of mythology which are now in vogue in England expound this solar theory so persistently that it is probable a race is growing up who fancy that the early Greeks talked with most "damnable iteration" of nothing but the weather, and that their conversation on that fruitful topic fell sick of some disease, breeding the tales of Thebes and Achilles and Pelops's line, as a child breeds measles. It is therefore necessary to subject it to criticism.