CRANIAL AUTONOMIC GANGLIA OF SHEEP 449 
its minute structure. Retzius found the cells mostly multipolar, 
with some bipolar elements in the cat. His method did not per- 
mit the study of nerve terminations in the ganglion. In 1894 
v. Lenhossék described Golgi preparations of the sphenopalatine 
ganglion of the mouse, and gave us the only account of fibrillar 
end baskets around the ganglion cells. In the recent paper of 
Miller and Dahl (710) a good description is given of the mor- 
phology of the cells of this ganglion in the horse, sheep, and man, 
but no mention is made of intracapsular end nets. The method 
of Bielschowsky was used. In one preparation (human) a peri- 
capsular ‘Nervenfasernetz’ was observed by them, from which 
terminal fibers appeared to run to the cell-body. This will be 
referred to later. 
In the otic ganglion the terminations of preganglionic neurones 
have not been demonstrated. The literature dealing with the 
histology of this ganglion is, in fact, very meager. Retzius (’80) 
ascertained from teased preparations that the ganglion contained 
multipolar cells in the rabbit, cat, sheep and man. Miller and 
Dahl (10) have confirmed this, by means of the Bielschowsky 
method, for the horse, sheep and man. 
The cells of the closely related submaxillary and sublingual 
ganglia have been described as multipolar elements by Retzius 
(80), Huber (96) and Miller and Dahl (10). Huber alone saw 
pericellular end nets. These were observed in Golgi preparations 
of the ganglia from young dogs. 
METHODS 
The nerve terminations described in this paper were demon- 
strated by means of intra-vitam staining with methylene blue. 
The sheep’s heads were brought to the laboratory about an hour 
after the animals had been killed, and injected through the 
carotid arteries with a 1 per cent solution of methylene blue in 
distilled water. The blood vessels were washed out before and 
after the staining by injections of Ringer’s solution. Both this 
and the methylene blue solution were used at approximately body 
temperature. 
