On the Occurrence of Silica in the Waters of the Passamaquoddy Bay Region

A study of the occurrence of silica in the waters of Passamaquoddy bay region has shown very little difference in amount from top to bottom in localities where the turning over of water was very marked, but where the water movement was not so pronounced the values varied considerably with depth. The silica content of the water decreased during the summer months. Fresh waters tributary to the bay had a higher silica content than that of the waters of the bay itself.