The conspicuous results of Dr. Le Plongeon’s active and successful labors in the archæological field, about which there can be no controversy, are the wonderful statue which he has disinterred at Chichen-Itza, and a series of 137 photographic views of Yucatan ruins, sculptures and hieroglyphics. All of the photographs are similar to those which appear in heliotype, diminished in size, as illustrations of this paper. They consist of portraits of Dr. Le Plongeon and of his wife; 8 photographs of specimen sculpture--among them pictures of men with long beards; 7 photographs of the ruins of Aké, showing the arrangement of so-called _Katuns_--the Maya method of chronology; 12 photographs of Yucatan Indians; 60 photographs of the ruins of Uxmal; and 48 photographs of the ruins of Chichen-Itza, including twelve views relating to the discovery of a statue called Chac-Mool. These pictures, and the relics found in the excavation from which the statue was exhumed, as well as the discovered statue, are valuable acquisitions, and establish a strong claim to the gratitude of the scientific world. Besides these articles, the original head and feet of a female idol in plaster, from the Island of Mugeres, have been discovered by Dr. Le Plongeon, which have not yet been brought to public notice. Of this antique figure Dr. Le Plongeon says, in a letter to the writer: “Whilst at Mugeres Island I had the good fortune to find the statue of one of the priestesses of the shrine of the Maya Venus, whose ruins stand at the southernmost end of the island, on the very brink of the cliff. It was entire, but the men, not knowing how to handle this object, when first disinterred broke it to pieces. I was only able to save the face and feet. They are full of interest, not only artistically speaking, but also historically, inasmuch as they seem to prove the ancient relations that existed between the people of Mayapan and the inhabitants of the west coast of Africa. The teeth, like those of Chac-Mool, are filed like a saw. This was the custom among persons of high rank in Mayapan, as it is even to-day with some of the African tribes, whilst the sandals are exact representations of those found on the feet of the _Guanches_, the early inhabitants of the Canary Islands, whose mummies are yet occasionally met with in the caves of Teneriffe and the other isles of the group. These relics, I am certain, are the last of high art to be found on the Island of Mugeres. The sea is fast eating the base of the promontory where stands the shrine. Part of it has already fallen into the sea, and in a few years not a stone will remain to indicate the place where stood this altar.”