Hein, " Untersuchungen uber die Entwicklung von Aurelia aurita," Zeitschr.
The Old Church, founded in the 11th century, but in its present form dating from 1476, contains the monuments of two famous admirals of the 17th century, Martin van Tromp and Piet Hein, as well as the tomb of the naturalist Leeuwenhoek, born at Delft in 1632.
- Sensory to that of the Anthozoa, but this has been dis cells from the retina proved by the most recent investigations of o f Char y b d a e a, Hein (4) and Friedemann (3), who have shown highly magnified.
PIETER PIETERZOON HEYN [commonly abbreviated to] (1578-1629), Dutch admiral, was born at Delfshaven in 1578, the son of Pieter Hein, who was engaged in the herring fishery.