FEBRUARY 22, 1901. ] 
Articulation of Ribs with each other: Dr. 
Hrop.uicka. (Illustrated by specimens. ) 
Discussed by Dr. Huntington. Variations 
in shape of normal first and second ribs; 
the sealene tubercle, its frequency and real 
nature, and a similar tubercle on the second 
rib; peculiarity of the normal ossification 
of the cartilage of first rib. Demonstration 
of anomalous specimens. 
Variations of the Inferior Cava: Dr. Hunt- 
InGToN. (Illustrated by photographs. ) 
The Origin of the Lymphatics of the Liver: Dr. 
Matt. 
When Prussian-blue gelatin in which 
cinnabar is suspended is injected into either 
the portal or hepatic vein, it is found that 
the blue filters through the capillary wall, 
leaving the red granules in the capillaries. 
The capillaries are surrounded by the peri- 
vascular lymph spaces which communicate 
with perilobular lymph spaces. These, in 
turn, communicate freely with the inter- 
lobular lymphatics. 
The Lobule of the Lung: Dr. W. S. MrittEr, 
Madison, Wis. (Illustrated by models, 
diagrams and lantern slides. ) 
Discussed by Drs. Huntington and Huber. 
The term lobule as applied to the unit of 
the lung has been used in an exceedingly 
vague sense both by anatomists and pathol- 
ogists. It is the purpose of the paper to 
give a definite meaning to the term. 
The Epithelium of the Pleural Cavities: Dr. 
Miter, Madison, Wis. (Illustrated by 
lantern slides and preparations. ) 
Since the time of vy. Recklinghausen and 
Oedmansson certain dark spots seen in 
many preparations of serous membranes 
stained by the silver nitrate method have 
been called stomata and stigmata. Ludwig 
and Dybkowsky described such structures 
in the pleura. Muscatello has recently 
shown that such openings do not exist 
normally in the peritoneum. Itis the pur- 
SCIENCE. 
293, 
pose of the paper to show that they do not 
exist in the pleura when studied in the 
normal condition, and that they can be 
produced artificially at the pleasure of the 
investigator. 
Preliminary Report with Projection Drawings, 
illustrating the Topography of the Paraceles 
in their Relation to the Surface of the Cere- 
brum and Cranium: Mr. HE. A. SprrzKa, 
New York City. (Illustrated by drawings 
and diagrams. ) 
Since the tapping and injecting into the 
ventricles have become definite procedures 
in surgery, it would greatly aid the opera- 
tor to have a more accurate conception of 
the extent, depth and contour of the cavi- 
ties, with their variations, than can be had 
from the bare rules and measurements set 
forth in most surgeries. With this view 
the author utilizes the entire head, hard- 
ened by injection of, and submersion in, 
formal. After a time the cranium is 
opened and the brain is accurately sliced, 
correct drawings being made at each step 
and projected for the delineation of the 
final plates. Two heads have so far been 
completed. It is proposed to decalcify the 
skulls of subsequent material, the entire 
head being then subjected to the slicing 
method. [Published in New York Medical 
Journal, February, 2, 1900. ] 
Bilateral Relations of the Cerebral Cortex: Dr. 
Me tuvs, Baltimore. 
Hastily reviewing bilateral relations pre- 
viously demonstrated, he called attention to 
a series of his recent experiments on the 
monkey. After extirpation of a small por- 
tion of cortex from that part of the so-called 
motor area situated on the boundary line 
between facial and upper limb centers, he 
showed degenerated fibers passing from the 
lesion across the middle line in the corpus 
callosum. These fibers were distributed to 
cortical areas of the opposite hemisphere 
corresponding to the convolutions upon the 
