_Hendericus du Booys: Helena Leonora de Sievéri_ (Vol. v., p. 370.).--Are
two different portraits of each of these two persons to be found? By no
means. There exists, however, a plate of each, engraved by C. Visscher; but
the first impressions bear the address of E. du Booys, the later that of E.
Cooper. As I am informed by Mr. Bodel Nijenhuis, Hendericus du Booys took
part in the celebrated three-days' fight, Feb. 18, 19, and 20, 1653,
between Blake and Tromp.--From the _Navorscher_.