Richard Llewellyn is the author of Fibrositis (gouty, infective, traumatic) (1915), Arthritis deformans ; comprising rheumatoid arthritis, osteo-arthritis, and spondylitis deformans (1909), Arthritis Deformans: Comprising Rheumatoid Arthritis, Osteo-arthritis, and Spondylitis Deformans ... With Thirty-eight Full Page Plates (1909), Comprising Rheumatoid Arthritis, Osteo-arthritis, and Spondylitis Deformans (1909), Poison Pen, a Play in Three Acts, by Richard Llewellyn.