Martin said that after continued translation they would become weary and would go down to the river and exercise in throwing stones out on the river, etc. While so doing on one occasion, Martin found a stone very much resembling the one used for translating, and on resuming their labors of translation Martin put in place [of the Seer Stone] the stone that he had found. He said that the Prophet remained silent unusually long and intently gazing in darkness, no trace of the usual sentence appearing. Much surprised Joseph exclaimed: "Martin! what is the matter? all is as dark as Egypt." Martin's countenance betrayed him, and the Prophet asked Martin why he had done so. Martin said, to stop the mouths of fools, who had told him that the Prophet had learned those sentences and was merely repeating them. [10] The sum of the whole matter, then, concerning the manner of translating the sacred record of the Nephites, according to the testimony of the only witnesses competent to testify in the matter is: With the Nephite record was deposited a curious instrument, consisting of two transparent stones, set in the rim of a bow, somewhat resembling spectacles, but larger, called by the ancient Hebrews "Urim and Thummim," but by the Nephites "Interpreters." In addition to these "Interpreters" the Prophet Joseph had a "Seer Stone," which to him was a Urim and Thummim; that the Prophet sometimes used one and sometimes the other of these sacred instruments in the work of translation; that whether the "Interpreters" or the "Seer Stone" was used, the Nephite characters with the English interpretation appeared in the sacred instrument; that the Prophet would pronounce the English translation to his scribe, which, when correctly written, would disappear and the other characters with their interpretation take their place, and so on until the work was completed.