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No matter what his attitude, his eyes retained always the solemnity one observes in the eyes of an infant to whom everything in the world is serious and nothing grotesque. "But now for the engraving on wood!" cried Jules Leuret, when we had exhausted ourselves with laughing. "What a pity you have no implements of the art here, Gervais!" "That's Eugene's chaff!" I cried.
It is by no means pretended that these conclusions of British observers as to the affinity in cerebral structure of Man and the Primates are new, but on the contrary that they confirm the inductions previously made by the principal continental teachers of the last and present generations, such as Tiedemann, Cuvier, Serres, Leuret, Wagner, Schroeder van der Kolk, Vrolik, Gratiolet, and others.
Voisin, a distinguished French physiologist and phrenologist, attempted the organization of a school for idiots in Paris. In 1839, aided by Dr. Leuret, he revived the School for Idiots in the Bicêtre, subsequently under the charge of M. Vallée. The "Apostle to the Idiots," however, to use a French expression, was Dr. Edward Seguin.
Thus, according to Leuret, the weight of the brain is to that of the whole body: In fish, 1:5,668; in reptiles, 1:1,320; in birds, 1:212; in mammals, 1:186. These figures give the averages of large numbers of observations and have a certain amount of value. But within the same class the ratio varies extraordinarily.
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