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In the first edition of the Principles of Geology, I divided the whole of the Tertiary formations into four groups, characterised by the percentage of recent shells which they contained. The lower tertiary strata of London and Paris were thought by M. Deshayes to contain only 3 1/2 per cent of recent species, and were termed Eocene.

Arrangement of New Collections. Dredging Expedition on Board the Bibb. Address at the Humboldt Centennial. Attack on the Brain. Suspension of Work. Working Force at the Museum. New Accessions. Letter from Professor Sedgwick. Letter from Professor Deshayes. Restored Health. Hassler Voyage proposed. Acceptance. Scientific Preparation for the Voyage.

The interior of the church contains several fine paintings, such as: The miracle of the loaves, by Daniel Hallé, and a Visitation, by Deshayes, of Rouen, in the chapel of the Virgin; an opening of the holy gate, by Léger, of Rouen, behind the pulpit on the wall of the aisle. This painting has been much spoiled by the damp. The different chapels also contain some less worthy of notice.

Having obtained information on this subject during my travels on the Continent, I learnt that M. Deshayes of Paris, already celebrated as a conchologist, had been led independently by the study of a large collection of Recent and fossil shells to very similar views respecting the possibility of arranging the Tertiary formations in chronological order, according to the proportional number of species of shells identical with living ones, which characterised each of the successive groups above mentioned.

He was very unceremonious, too, but at the same time he did not like people to be wanting in respect to him. One day an artiste, named Paul Deshayes, who was playing in Francois le Champi, came into the green-room. Prince Napoleon, Madame George Sand, the curator of the library, whose name I have forgotten, and myself were there. This artiste was common, and something of an anarchist.

For, what we want is time, first, for the gradual formation, and then for the extinction of races and allied species, occasioning gaps between the survivors. In the year 1830 I announced, on the authority of M. Deshayes, that about one-fifth of the mollusca of the Falunian or Upper Miocene strata of Europe, belonged to living species.

As to the fossil fauna of the drift, considered in relation to the climate, when, in 1859, I took a collection which I had made of all the more common species of land and freshwater shells from the Amiens and Abbeville drift, to my friend M. Deshayes at Paris, he declared them to be, without exception, the same as those now living in the basin of the Seine.

Deshayes had triumphantly intended to portray the first dawn of an art which he considers to have now reached the summit of perfection. But who knows but the Monsieur Un tel of 1931 may, with equal boldness, parody the pirouettes of Monsieur Deshayes? Even the music to this mythological interlude is borrowed from ancient scores; a happy thought, which deserves commendation. Ibid. Mr.

Pectunculus lividus, Reeve. 73. Pectunculus pectenoides, Deshayes. 74. Avicula margaritifera, Linne. 75. Tridacna gigas, Linne. On the day of our arrival at El-Wijh I sent a hurried letter of invitation to Mohammed 'Afnan, Shaykh of the Baliyy tribe; inviting him to visit the Expedition, and to bring with him seventy camels and dromedaries.

The corps de ballet consists of between eighty and ninety fine dancers, of whom Monsieur Deshayes is the principal. His movements are more graceful, his agility more surprising, and his step more light, firm, and elastic, than those of any dancer whom I have ever seen. He is very justly considered to be the first in Europe.