294 King Tiridates was converted by Gregory the Illuminator and adopted the Christian faith.
Gregory the Illuminator (Rivingtons, 1868).
The objects observed with the vertical illuminator must not have a glass cover if the dry system is employed, because the upper surface of the glass cover would send so much light back into the objective by reflection, that the image would be indistinct.
GREGORY THE ILLUMINATOR, the reputed founder of the Armenian Church.
1 On the other hand, the globe is made gay with flags and other decorations, the work of George Glockendon, a well-known illuminator of the time.
