""Studies on Cambrian Faunas, No. 3: Upper Cambrian Fauna of Mount Stephen, British Columbia, The Trilobites and Worms"" is a scientific publication written by George Frederic Matthew and originally published in 1899. The book is a detailed study of the Upper Cambrian fauna found in Mount Stephen, British Columbia, with a focus on trilobites and worms. The book contains a wealth of information on the morphology, taxonomy, and distribution of the trilobites...