G. GENERAL NATURAL HISTORY AND ZOOLOGY. 301 



the Dublin mountains, as many as thirty heads were obtained 

 in a cutting of about a hundred yards in length by three in 

 breadth. Nothing further was done in this locality until, at 

 the suggestion of Dr. Adams, during the present year, a re- 

 newed examination of the region was made by running a se- 

 ries of trenches parallel with the original ditch, which Avas 

 done at the expense of the Royal Irish Academy. The re- 

 sult has been the finding of about thirty additional heads of 

 tlie o-reat Irish deer. These were imbedded in from two to 

 three feet of clay, often lying on or impacted between blocks 

 of granite, as if they had been drifted into that situation. 

 Here, as elsewhere in Ireland, they were met with around 

 the margins of the bogs, and not in the middle, as if the ani- 

 mals were mired in the shallow water, or else their carcasses 

 had drifted with the winds and currents to the sides and out- 

 let of the lake. 



Another collection of a similar character has lately been 

 dug from a bog on the property of Mr. R. Usher, of Cappogh, 

 near Dungarvan. These were collected in a space about one 

 hundred yards in length and seventy in breadth, and include 

 heads and cast antlers of no less than fifteen individuals of 

 the great horned deer and the antler of a red deer. 12 A, 

 /Se2:>te77iber 16, 1875, 435. 



EEVISION OF THE GLIRES. 



Mr. Edward R. Allston has lately published, in the Pro- 

 ceedings of the Zoological Society of London, a revision of 

 the order of Glires [Roclentia) ^ or gnawing animals, in which 

 he includes both the fossil and the recent forms. The whole 

 paper promises to be of great benefit to working naturalists, 

 based as it is upon an examination of the 23rincipal collec- 

 tions of these animals in Europe. 



MAESH ON THE BPvONTOTHEEID^. 



Professor Marsh published in the April number of the 

 American Journal of Science an account of one of the dis- 

 coveries recently made by him in regard to what he calls 

 the Br ont other idee. This is a group of gigantic mammals 

 abounding in the lowest deposits of the miocene formation 

 in the eastern slope of the Rocky Mountains. They were of 

 enormous size, and so peculiar in character as not to be ref- 



