Link PDF :
https://antilogicalism.com/wp-content/uploads/2018/04/ecclesiastical-history.pdf (https://antilogicalism.com/wp-content/uploads/2018/04/ecclesiastical-history.pdf)
Link Internet Archive (Google Books):
https://archive.org/details/eusebius-ecclesiastical-history-loeb/page/n1/mode/2up (https://archive.org/details/eusebius-ecclesiastical-history-loeb/page/n1/mode/2up)