Eight lectures on the signs of life from their electrical aspect / by Augustus D. Waller.
- Augustus Desiré Waller
- Date:
- 1903
Licence: Public Domain Mark
Credit: Eight lectures on the signs of life from their electrical aspect / by Augustus D. Waller. Source: Wellcome Collection.
Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.
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No text description is available for this image![tl.] I have formed the opinion, from a large number of observa- tions and trials, that the principal factor in bringing about that 4- Tl .:■..., \, O / 2 mins. Fig. 14.—Positive—before massage. o I 2l mins. Fig. 14.—Negative-—after massage. Response to light (25 units). The horizontal lines in both these records denote a scale in yTyi^prrths of a volt; the resistance of the eyeball has been much diminished by massage. state of eyeball in which the response to light is purely negative, is a moderate compression, or shrinking by drying of its retinal](https://iiif.wellcomecollection.org/image/b21204767_0043.jp2/full/800%2C/0/default.jpg)