""A Preliminary Study of the Prickly Pears Naturalized in New South Wales"" is a book written by Joseph Henry Maiden in 1898. The book is a comprehensive study of the prickly pear plant, which is a cactus species that was introduced to Australia in the 19th century. The book provides detailed information on the different varieties of prickly pear that have been naturalized in New South Wales, as well as their distribution, growth habits, and economic...