Paper, 'Sententia D [...] de origine siphrarum, ex esusdem demonstratione evangelica' [On the origin of the siphras or siphon from 'Demonstratione evangelica'] by Dr [Thomas] Gale Gale discusses Eusebius's 'Demonstratione evangelica', also known as 'Praeparatio evangelica', a work of Christian apologetics from the fourth century CE. He writes on Greek and Arabic languages and characters. Subject: Language / Alphabet Read to the Royal Society on 14 April 1686 1686