1. Memoirs of Angier March Perkins;Anon;Proc. Inst. Civ. Eng.,1882
2. Perkins’ hermetic tube boilers;King;Engineering,1931
3. L.P. Perkins, W.E. Buck, Improvements in devices for the diffusion or transference of heat, UK Patent 22, 1892.
4. The Paris Exhibition-Perkins’ portable oven;Anonymous;Engineering,1867
5. R. Gaugler, Heat transfer device, Patent no. US2350348, 1944.