Bull. U. S. F. C. 1891. European Methods of Oyster-culture. (To face page 406.) 
Plate LXXXII, 
Fig. 1. Jerseke-dam, Holland. A Cultural Inclosure of the better class, emptied 
FOR PURPOSE OF CLEANING. 
Wire gauze cases for elevage are seen, arranged so as to be two trays deep. Water, to the depth indicated on the 
brick wall, is renewed once in twenty-four hours. (Page 385.) 
Fig. 2. Bergen-op-Zoom, Holland. View of a Rearing Pond. 
This establishment has been located within the lines of the dikes, which is seen in the background of the 
picture. Several ponds are arranged similar to the one figured. The margins are of turf; the water depth, 
renewed at high tide, is about 3 feet, the bottom is clayey loam ; the transverse beams are of service in handling 
and transporting the oysters. The ponds serve to retain the spat-covered tiles during the winter season. 
Further elevage is carried on (I) by placing the seed (i. e., young separated from tiles) into the wire-gauze 
cases; (2) by strewing the somewhat larger oysters directly upon the pond bottom, (Page 385.) 
