In not one of them does any mention of a miracle by Xavier appear in a letter from India or the East contemporary with him.
This silence regarding his miracles was clearly not due to any "evil heart of unbelief." On the contrary, these good missionary fathers were prompt to record the slightest occurrence which they thought evidence of the Divine favour: it is indeed touching to see how eagerly they grasp at the most trivial things which could be thus construed.
Their ample faith was fully shown.

One of them, in Acosta's collection, sends a report that an illuminated cross had been recently seen in the heavens; another, that devils had been cast out of the natives by the use of holy water; another, that various cases of disease had been helped and even healed by baptism; and sundry others sent reports that the blind and dumb had been restored, and that even lepers had been cleansed by the proper use of the rites of the Church; but to Xavier no miracles are imputed by his associates during his life or during several years after his death.
On the contrary, we find his own statements as to his personal limitations, and the difficulties arising from them, fully confirmed by his brother workers.

It is interesting, for example, in view of the claim afterward made that the saint was divinely endowed for his mission with the "gift of tongues," to note in these letters confirmation of Xavier's own statement utterly disproving the existence of any such Divine gift, and detailing the difficulties which he encountered from his want of knowing various languages, and the hard labour which he underwent in learning the elements of the Japanese tongue.
Until about ten years after Xavier's death, then, as Emanuel Acosta's publication shows, the letters of the missionaries continued without any indication of miracles performed by the saint.

Though, as we shall see presently, abundant legends had already begun to grow elsewhere, not one word regarding these miracles came as yet from the country which, according to later accounts accepted and sanctioned by the Church, was at this very period filled with miracles; not the slightest indication of them from the men who were supposed to be in the very thick of these miraculous manifestations.
But this negative evidence is by no means all.

There is also positive evidence--direct testimony from the Jesuit order itself--that Xavier wrought no miracles.
For not only did neither Xavier nor his co-workers know anything of the mighty works afterward attributed to him, but the highest contemporary authority on the whole subject, a man in the closest correspondence with those who knew most about the saint, a member of the Society of Jesus in the highest standing and one of its accepted historians, not only expressly tells us that Xavier wrought no miracles, but gives the reasons why he wrought none.
This man was Joseph Acosta, a provincial of the Jesuit order, its visitor in Aragon, superior at Valladolid, and finally rector of the University of Salamanca.