And, of potential interest to the HN crowd, those one million newly digitized images are also available for programmatic access from Yale's IIIF (
https://iiif.io/api/image/3.0/) API endpoint. So, for instance, if you happen to like peanuts (unlike Comstock) you may want to zoom in on them in their full glory:
https://collections.library.yale.edu/iiif/2/1197356/2520,169...