134 REPORT — 1855. 



mation of the hemispheres in the Transactions of the Royal Academy of Sciences of 

 Stockholm for 1844, without his being then aware of Eschricht's views. Professor 

 Retzius has in this view considered the fornix to form a part of the inferior surface 

 of the hemispheres. (See his Treatise on Phrenology, considered from an anato- 

 mical point of view, 1847.) This is confirmed by examination of the brain in a 

 great number of the mammals, in which the under surface of the fornix is to a 

 considerable extent in its posterior part, covered with bilateral and symmetrical gyri 

 of grey substance. In man these gyri are small and thin. The posterior part of 

 them is situated under the lateral parts of the so-called splenium corporis callosi 

 (which partly belongs to the fornix). Here these gyri are very pale, greyish, 

 low, smooth, only 4 millimetres broad. The posterior ends, which are convergent, 

 are small, tongue-shaped, and very thin ; they diverge anteriorly in proceeding 

 towards the cornua Ammonis, where they are continued as the well-known fascia 

 dentata of the hippocampus or cornu. Professor R. mentions that these gyri are 

 represented in Vicq d'Azyr's 20th table, especially in the coloured part on the left 

 side. Jt seems that Vicq d'Azyr himself had not given any particular attention to 

 these gyri, as they are not mentioned in the text or explanation of the plates. The 

 author illustrated this paper with a number of drawings, representing the brains, iri 

 different stages of development, of mammals and man. 



On an Episcaphoid Bone in both Hands of a Guarani Man. 

 By Professor Andrew Retzius, of Stochholm. 



A Swedish gentleman, Signor Liljedahl, now mining engineer in Paraguay, sent 

 home, some years ago, with the Swedish corvette ' Najaden,' from Buenos Ayres, a 

 skeleton of a native man of the Guarani race. Among several other peculiarities 

 in that skeleton, now belonging to the Anatomical Museum of the Royal Caroline 

 Institute at Stockholm, it had nine carpal bones on both hands. The supernumerary 

 bone was situated on the upper articular surface of the scaphoid bone, turned towards 

 the vola, and near the lower end of the radius, and opposite the pisiform on the 

 ulnar side. It bore much resemblance to a large pisiform bone ; its articular surface 

 was concave : on the outer side it had the appearance of a ligamentous connexion. 

 It is probable that the proper annular ligament had had one of its attachments to it. 

 Its length from above downwards is 13 millimetres, height from the articulating 

 surface 11 millimetres, thickness 9 millimetres. The posterior side is flattened, 

 with two small tubercles on the anterior surface. The other half was a part of the 

 surface before mentioned for ligamentous attachment. The rest was concave, form- 

 ing a slight groove. The bones in the two hands are precisely the same shape, and 

 are nearly of the same size. Future observations will probably show whether 

 such bones are of more or less frequent occurrence among the Guaranis. Dr. 

 Retzius hopes he may obtain further information on the subject from his country- 

 men. Dr. Rosenskjold and Mr. Liljedahl, in Paraguay, to whom he had applied. 



On the Pelvis of a Lapland Giantess. 

 By Professor Andrew Retzius, of Stockholm. 



Professor Retzius exhibited a cast, and described the pelvis of a giant Lapland 

 woman, aged 43 years, which, with the whole skeleton, he had obtained for the 

 Museum of the Royal Caroline Institute of Stockholm. This woman was 6 feet ISA- 

 inches (Swedish measure) in height. The pelvis presented a general enlargement 

 corresponding with that of the rest of the body. It was nearly naturally formed, 

 but approached somewhat the male form, more especially in the narrowness of the 

 subpubic arch. 



On the application of Physiological Principles to gymnastic education. 

 By Dr. Roth, London. 



