Page:Natural History Review (1861).djvu/228

216

These four views of the brain of the orang are copies of photographs taken of it by Messrs. Hills and Saunders, of Oxford. The brain had been carefully hardened in spirit for as much as two months before it was thus photographed. The figures are numbered in the order in which the photographs were taken. The numbers placed upon the convolutions on the exterior surface of the brain will be found to correspond with those similarly employed by M. Gratiolet in his invaluable Mémoire sur les Plis Cérébraux de 1' Homme et des Primatés, so often referred to.

4em

4em

4em

4em

4em

4em

4em

4em

4em

4em