Advertisement: text with three vignette illustrations; a man and two women each wear a pocket battery pack with connecting cables and electrodes; on the man they are attached to his arm, on the women they are worn around the head and in the ears.
Copyright:
The National Library of Medicine believes this item to be in the public domain. (More information)
Related Title(s):
Is part of: Harper's Weekly, v. 33, p. 487 or 489.; See related catalog record: 100897546
