Instruct: Classify an Amazon review as either positive or negative.
Query: Frontier Medicine

The book is an informal narrative of potions, lotions and elixers used in the frontier west. For those looking for an easy read with some good entertainment this is a fine book. For those who are serious students of historical medicine the book is rather light and frothy. But in general the book provides an interesting insight into the conceptions of herbal medicine and how toxic or narcotic drugs were used during the 19th and early 20th century.