Ba. 
der spinalen Trigeminuswurzel ein und zieht teils zum Nucleus tri- 
angularis (innerer Acusticuskern), teils direct zur Raphe. 
10) Das Corpus trapezoides liegt in einer dünnen, überdies nicht 
zusammenhängenden Schicht frei. 
Bezüglich der genaueren Beschreibung und Erörterung, sowie zahl- 
reicher Einzelheiten verweise ich auf die ausführliche Arbeit, welcher 
zahlreiche Abbildungen beigegeben sind. Auch bin ich in dieser auf 
die Entwickelungsgeschichte und die vergleichend-anatomischen Be- 
ziehungen näher eingegangen. 
Jena, im Januar 1897. 
Nachdruck verboten. 
The Blood-vessels of the Lymphatie Gland. 
By W. J. CALvERr. 
(From the Anatomical Laboratory, Johns Hopkins University, Baltimore, Md.) 
With 2 Figures. 
Ever since the investigation of KIERNAN !) of the microscopical 
anatomy of the liver, we have had before us a model by which the 
minute anatomy of the other organs could be studied. On reviewing 
what is known of the microscopical anatomy of the various organs it 
will be found that there are still a number of them, the structure of 
which is not entirely clear. 
One of the aims of the histologist is to show the manner in which 
the tissues arrange themselves into “units” which in turn are repeated 
a number of times in the formation of the organs of the body. Each 
such unit, as for example the lobule of the liver, the villus of the 
intestine or the air-sac of the lung has its own skeleton of connective 
tissue fibrils, its own system of blood-vessels, lymphatics, and nerves, 
and its own aggregation of cells. When the arrangement of these 
tissues has been determined for the “unit” of the organ, the key is 
then provided by which the minute anatomy of the whole organ can 
be unravelled. Furthermore, the units are of the utmost service in 
working out the comparative microscopical anatomy of the organs, as 
has been well shown by the research of Miter?) upon the minute 
anatomy of the lung. 
The unit of the lymphatic gland may be said to be the follicle 
1) Kiernan, Phil. Trans., 1833. 
2) Miter, Journal of Morphology, Vol. 8. 
