56).] The loss of his Wilhelmina, had there been no other grief, has darkened all his life to Friedrich.

Readers are not prepared for the details of grief we could give, and the settled gloom of mind they indicate.

A loss irreparable and immeasurable; the light of life, the one loved heart that loved him, gone.

His passionate appeals to Voltaire to celebrate for him in verse his lost treasure, and at least make her virtues immortal, are perhaps known to readers: [ODE SUR LA MORT DE S.A.S.
MADAME LA PRINCESSE DE BAREITH (in _OEuvres de Voltaire,_ xviii.

79-86): see Friedrich's Letter to him (6th November, 1758); with Voltaire's VERSES in Answer (next month); Friedrich's new Letter (Breslau, 23d January 1759), demanding something more,--followed by the ODE just cited (Ib.lxxii.