518 SLTMMAKY OF CUREENT RESEAECHES EELATING TO 



than usual. In some of the organs, especially in the kidneys, there were 

 signs of degeneration and abnormal development. It is very probable that 

 the gigantism is associated with hypertrophy of the hypophysis. 



Herxheimer's Fibres in Lingual Mucosa of Dolphin.*— E. Argaud 

 and A. Weber find sinuous fibres, like those described by Herxheimer, in 

 the lingual epithelium of Delphinus delphis, running at right angles to 

 the free surface and very abundant in the middle strata of the malpighian 

 region. The authors make two notes, that the region in question shows 

 some phenomena of involution, and that the fibres may be products 

 rather than active parts of the cells. They persist into the most super- 

 ficial layers ready to desquamate ; they have a certain skeletal rigidity ; 

 they remain always perpendicular to the mucous surface. 



Organ of Corti.f - E. Vasticar finds that the outer rods of Corti are 

 double. There is a delicate second rod, distinct from the other, differ- 

 ing in structure and points of attachment. The bodies usually described 

 as the " basal bodies " of the outer rods of Corti are really the bases of 

 the delicate rods which are now described. 



Epithelium of Gall-bladder in Chelonians.| — Max Kollmann has 

 studied this in Glemnys leprosa and Testudo graeca. It consists of 

 regular cylindrical cells. There are no mucous cells. The author 

 describes the structure of the cytoplasm, the basal membrane, the inner- 

 vation of the epithelium, the degeneration of the nuclei by pycnosis and 

 karyorhexia, and the degeneration of the cytoplasm. 



Golgi's Reticulum in Epithelial and Connective-tissue Cells.§ — 

 D. Deineka finds that the reticular apparatus is by no means restricted 

 to nerve-cells. It occurs in other kinds, if not in all. In most cases, 

 except in nerve-cells, it appears as a thick close coil, whose size is pro- 

 portional to that of the cell. In most cases it lies at a pole of the cell, 

 but with increasing age it often becomes circumnuclear. In karyokinesis 

 the reticulum goes through a series of changes which lead to bipartition 

 between the two daughter-cells. In amitotic nuclear division the reticulum 

 does not divide ; it lies in the cell between the two nuclei. 



c. General. 



Peculiar Structure on Floor of Mouth in Mammals. |1 — E. Ackerk- 

 necht found two small, often symmetrical, openings in the aoterior 

 region of the floor of the horse's mouth, just behind the first incisor. 

 The minute slits lead into epithelial invaginations ending blindly. The 

 structures in question were seen on 36 horses, 4 mules, 2 donkeys, 5 oxen, 

 1 sheep, <S goats, 2 deer, 2 pigs, 9 dogs, and 3 cats. Opinion as to the 

 significance of the minute openings is reserved. 



* C.R. Soc. Biol. Paris, Ixxii. (1912) pp. 918-20. 



t Comptes Rendus, cliv. (1912) pp. 1723-6 (5 figs.). 



X Bull. Soc. Zool. Prance, xxxvii. (1912) pp. 120-5 (4 figs.). 



§ Anat. Anzeig. xli. (1912) pp. 289-309 (12 figs.). 



II Anat. Anzeig., xli. (1912) pp. 484-49 (10 figs.). 



