[13] As the fish from which these oils are obtained are of the mammalia order, their oils are classed among the animal oils.
[14] The Horological Journal, Apr., 1881. Vol. xxiii. Page 98.
[15] Pharmacopœa Germanica. 1882.
[16] The National Dispensatory. 1884.
[17] Saunier, Watchmaker's Hand-Book, p. 104, Eng. Edition; p. 129, Am. Edition.
[18] Brannt. Animal and Vegetable Fats and Oils.
[19] Paper read in the Chemical Section, British Association, Plymouth Meeting, 1879.
[20] Swansea Meeting. British Association, 1880.
[21] This work is compiled from a course of lectures delivered by the author before the Philadelphia Horological Society, 1896.
[22] Thurston. Friction and Lost Work in Machinery.