The correlation of physical forces / by W.R. Grove
On the interaction of natural forces / by H.L.F. Helmholtz
Remarks on the forces of inorganic nature / by J.R. Mayer
On celestial dynamics / by J.R. Mayer
Remarks on the mechanical equivalent of heat / by J.R. Mayer
Some thoughts on the conservation of force / by Dr. Faraday
On the connection and equivalence of forces / by J. von Liebig
On the correlation of physical and vital forces / by W.B. Carpenter.
