author
b. 1892
Best known for an early 20th-century guide to epilepsy, hysteria, and neurasthenia, this medically minded writer explored nervous disorders in clear, practical language. His surviving record is slim, which gives his work the feel of a small historical window into how these conditions were explained in the 1920s.

by Isaac George Briggs
Isaac George Briggs was a British medical writer born in 1892. He is identified in library and archival records as the author of Epilepsy, Hysteria, and Neurasthenia: Their Causes, Symptoms, & Treatment, a work published in 1921.
That book reflects the medical thinking of its era, especially around nervous disorders and mental health. Today it is read less as current medical advice and more as a period document that shows how epilepsy, hysteria, and neurasthenia were discussed in the early twentieth century.
Little biographical information about Briggs appears to be widely available in major public sources, so it is safest to keep the focus on the work itself rather than claim details that cannot be confirmed.