There are many e-texts available, but they are poorly organized. The site seems to rely on searches, of which there are plenty of options. Ultimately, this site has much to offer, but it needs to be presented in a more user-friendly fashion. There are no recent updates and some external links are defunct. Variety and depth are problems, however, the designer provides a range of external links, on-site documents and images.
Navigation is the most serious issue here.
There is no index or consistent navigation bar available. While I assume someone highly interested in the study of Hawthorne created the site, his or her presence is invisible. This hampers reliability. It is an archive of the works of about 50 authors. The source is highly reliable as he established impeccable standards of accuracy and completeness.