Medicinal Dosing Book, 1868


This Duffield's Medicinal Fluid Extracts booklet measures 9 by 6 inches and was published in 1868 by Duffield, Parke and Co. It contains the recommended fluid extract dosages for more than 180 roots, leaves, and flowers. Some of these include Bitter Root, Catnip, Golden Rod, Ipecac, Opium, Sassafras, and Wormwood. The Duffield brand claimed to be the purest since all extracts were obtained without the use of any heat. Additionally, this booklet also contained testimonials from doctors used Duffield's guide in their practices.


In 1979, Drusilla Martin Cathell (1916 to 1990) donated her husband Dr. James Luther Cathell's medicinal fluid extracts booklet to the Museum. Duffield's Medicinal Fluid Extracts was published by Duffield, Parke and Co. The company was founded in Detroit, Michigan, by Dr. Samuel Pearce Duffield (1833 to 1916), a physician and a pharmacist. In 1866, Hervey Coke Parke joined the company, followed by George S Davis in 1867. Duffield left the partnership in 1869 and it became Parker, Davis and Co., Inc., in 1871. This company went on to invent hard gelatin capsules in 1874 and to manufacture vaccines, hormones, and serums by 1900.

Although founded in America, the company had an overseas subsidiary based in London called Parker, Davis and Co., Ltd., that provided the Allied armies with medication during the Second World War. Parke, Davis and Co., was purchased in 1970 by Warner Lambert, Inc., which merged with Pfizer in 2000.

Dr. James Luther Cathell (1914 to 1970) was born in Davidson County, NC., to Dr. James Edwin Cathell (1877 to 1930) and Grace Sowers (1884 to 1971). The family lived for a short time in Wilmington while James Edwin practiced medicine out of a downtown office in the Murchison Bank Building from 1919 to 1922. After the untimely death of his father in 1930, James Luther went to live with his uncle and aunt, Dr. James Long Sowers (1894 to 1932) and Elizabeth Travis Sowers (1896 to 1933) in Lexington, NC. Unfortunately, James soon lost his uncle in a car accident and his aunt to heart disease just a few years later. Meanwhile, his mother, Grace, went to live with her parents Luther Columbus Sowers (1858 to 1940) and Fannie Long Sowers (1866 to 1951) in Boone, NC.

James Luther received his undergraduate degree from Wake Forest University and his medical degree from Emory University in Atlanta. He completed his psychiatric residency at UNC Chapel Hill and served at John Umstead Hospital. James Luther married Drusilla Louise Martin on March 19, 1942, in Forsyth County, NC. He was a respected member of the medical community and served as a member of the American Psychiatric Association, the New Hanover County Medical Society, and the New Hanover County Mental Health Association. Cathell also worked at the Southeastern Mental Health Center on South 17th Street.

Medicinal Dosing Book

CFM 1979.004.0001

Gift of James Luther Cathell