He also published a technical treatise on violin technique in 1909.

He was still engaged in his research into ecclesiastical history, and published several treatises.

In 1657, during the Commonwealth, he published a treatise on the administration of the sacrament to all church members.

In 1517, he published in six books a treatise on the famous men of his Order.

He also published a treatise on workers' compensation law.

Rondelet published a treatise on architecture between 1805 and 1816.

Del Mar also published several archaeological treatises of great interest.

During the 1920s and 1930s, he published numerous treatises on economic and social policies.

He published in 1881 a short treatise on Dramatic Singing.

In 1753 he published A treatise of the scurvy, which was virtually ignored.