Mr. Holder early discerned his young brother-in-law's talent for mathematics and gave him private lessons. Mr. Holder was subsequently appointed to the living of Bletchingdon in Oxfordshire, which he held until 1663. [THE FIRST FRUITS OF HIS PAINS.] Among the few autograph letters of Christopher Wren's which remain in the family, is one written to his father from Westminster in a boy's unformed hand, the faintly ruled lines still showing. [28]'Venerande Pater,--Sententia apud antiquos vulgata est, quam ex ore tuo me habuisse memini, Parentibus nihil posse reddi æquivalens. Frequentes enim curae et perpetui labores circa pueros sunt immensi quidem amoris indicium. At praecepta illa mihi toties repetita, quae animum ad bonas Artes, & Virtutem impellunt, omnes alios amores superant. Quod meum est, efficiam, quantum potero ne ingrato fiant hac munera. Deus Optimus Maximus conatibus meis adsit et Tibi, pro visceribus illis Paternae Pietatis, quae maximè velis praestet. 'Id orat Filius tuus, Tibi omni obsequio devotissimus, 'CHRISTOPHORUS WREN. 'Has tibi primitias Anni, Pater, atq. laborum Praesto (per exiguas qualibet esse sciam) Quas spero in messem posse olim crescere, vultu Si placido acceptes tu, foveasque sinu. 'To you, Deare Sir, your Son presenteth heere The first-fruits of his pains and of the yeare; Wich may (though small) in time an harvest grow, If you to cherish these, your favour shew. 'E. Musaeo Meo. 'Calendis Januarii 1641 (1642 N.S.)' [DIOCESE OF ELY.]