This is another version of Phos hilaron for evening prayer, this time translated by Francis Bland Tucker and set to JESU DULCIS MEMORIA.
The text is here. This lousy backing explains why I am not doing more chant backings.
I’m coming to the end of the first volume and will skip a lot of the chanted psalmody, but that it is no reason for you to overlook this fine liturgical treasure chest.
I gather a lot of these texts were delightfully appropriated for Evensong in the Anglican tradition.