Upwards of sixty years ago, there was opened at the Egyptian Hall, Piccadilly, what was described as the "Unique Exhibition called Ancient Mexico; collected on the spot in 1823, by the assistance of the Mexican Government, by W. Bullock, F.L.S., &c., &c." The illustration attached to a published description of this collection shows that it contained reproductions of some of the most remarkable of the serpent deities to be found in the temples of the western parts of America, and the following extract will prove interesting to our readers. "The rattlesnake appears to have been the most general object of worship, veneration, and fear; indeed it occurs in some manner combined with almost every other, and is still found in many of the Indian villages. It remains at Tezcuco, quite perfect at the present time. Broken fragments may be met in the exterior of the houses in Mexico in several places; the great head placed at the left of the sacrificial stone is cast from one in the corner of the fine building used for the Government Lottery Office, and exposed to the street. It must have belonged to an idol at least seventy feet long, probably in the great temple, and broken and buried at the Conquest. They are generally in a coiled up state, with the tail or rattle on the back, but they vary in their size and position. The finest that is known to exist, I discovered in the deserted part of the Cloister of the Dominican Convent opposite the Palace of the Inquisition. It is coiled up in an irritated erect position, with the jaws extended, and in the act of gorging an elegantly dressed female, who appears in the mouth of the enormous reptile, crushed and lacerated, a disgusting detail withal too horrible for description.