Mark Lucar, who was baptized by immersion in London.
Samples of this timber have been studied after forty-three years' immersion in sea-water.
In the summer of 1864 a sermon which he preached and printed on Baptismal Regeneration (a doctrine which he strenuously repudiated, maintaining that immersion was only an outward and visible sign of the inward conversion) led to a difference with the bulk of the Evangelical party, both Nonconformist and Anglican.
After the first few days of immersion the stalks are examined daily to test the progress of the retting.
The immersion itself is a simple matter; the difficulty lies in deciding when the process is complete.