November 29, 2019
Google Poor PDF's
Google generated PDF's, like this one, should all be removed from the Internet Archive. They do NOT scan pictures nor foldout diagrams. I agree with the other reviewer that their quality of scan is poor.
July 31, 2018
VERY poor digitized copying
Whomever digitized this copy (Google) used the very least qualityfineness, creating an almost completely illegible file. Enlarging images just large enough to read captions, made useless- there are so few "dots per inch" rather, such crappy resolution even a 1980s Xerox copier would have been an improvement. SHAME on Google- they did this.