Neuromuscular Contacts in Intracranial Arteries of the Cat
E. Nelson 1 and
M. Rennels 1
1 Departments of Neurology and Anatomy, University of Maryland School of Medicine, Baltimore 21201
In the report by Nelson and Rennels [Science 167, 301 (1970)], the last sentence of the first column on page 302 should read "One might also speculate that axons lacking granulated vesicles of this size but containing concentrations of agranular vesicles, shown in other locations to contain acetylcholine (15), are cholinergic or parasympathetic."