985 
the distribution and mode of termination of the nerve-fibres in the 
corpus ciliare and the adjacent membranes of the human eyeball, 
states, that “in keinem einzigen seiner Praeparate je etwas zu 
sehen war, was als ein unmittelbarer Zusammenhang des Nerven- 
fadchens mit dem Protoplasma, dem Kern oder gar dem Nucleolus 
der Muskelzellen zu deuten wäre”. 
AGABABOW, as I mentioned before, studied the innervation of the 
corpus ciliare. This led him chiefly to a confirmation of his earlier 
observations on the same subject in the year 1897. In the corpus 
ciliare of human eyes and of the eyeballs of albinotie cats AGABABOW 
demonstrated the presence of the following nerve-terminations : 
1. endorgans of the motor nerves in the plain muscle-cells of the 
musculus ciliaris, 2. vasomotor nerves for the ciliary bloodvessels, 
3. terminations of afferent sensory nerves in the corpus ciliare, 
4. terminations of afferent nerves in the lamina suprachorioidea, 
which covers the corpus ciliare as a loose soft membrane of areolar 
connective tissue at the outside. As for the motor nerves of the 
musculus ciliaris, they appeared in his preparations of cats’ and 
mens’ eyes (Golgi- and methylene blue-preparations) as numerous 
fine varicose threads running between the muscle-cells; at different 
points, always outside the cell-boundary, the nerve-fibres terminate 
and the ends are applied to the cell-surface. This however is after 
the observations of AGABABow not yet the real ending of the nerve- 
fibres, for sometimes he could see one of these delicate fibres bifur- 
cate again and the two exceedingly delicate terminal branches could 
be followed around the muscle-cell, encircling it on both sides. From 
these observations AGABABOW draws the conclusion”): ‘dass eine 
jede Muskelzelle von einem Netze sehr feiner Nervenfaden umflochten 
wird; hierbei stehen die Nervennetze der Nachbarzellen noch durch 
2—3 Fadchen unter einander in Verbinding. Diese Endigungsart der 
motorischen Nerven in Gestalt eines perizellulären Netzes, welches 
eine jede Muskelzelle umspinnt (ohne terminale Anschwellungen) 
ist mit grosser Wahrscheinlichkeit eine fiir die motorischen Nerven 
der glatten Muskulatur (Sphincter iridis, Gefässe, Darm) allgemeine 
Erscheinung”’. 
AGABABOW studied the innervation of the corpus ciliare by means 
of the Golgi-method and intra-vitam staining with methylene blue. 
Now this account of AGABABow coincides entirely with what I have 
seen in a number of Golgi- and methylene blue preparations of the 
1) le. p. 355. 
2) lie, p. 358. cf. Tmtoresew 1896. 
