Here are some factors that can influence the monetary value of your book:
1. Condition: The overall condition of the book is crucial in determining its value. A book in excellent condition, with minimal damage to the cover, pages, and binding, will be more valuable than one that is worn or damaged.
2. Rarity: The rarity of the edition can also affect its value. If your book is a first edition or a limited edition, it will be considered more valuable. Additionally, books with unique features such as inscriptions, illustrations, or personal notes can also increase their rarity and value.
3. Provenance: The provenance of the book, or its history of ownership, can add value. If you have documentation or information about previous owners, particularly if they were notable figures or collectors, it can enhance the book's worth.
4. Market Demand: The overall demand for Mary Baker Eddy's works and the specific volume you own can influence its value. If there is a high demand for her poetry, particularly the 1910 edition, it can increase the book's monetary value.
To accurately assess the value of your book, it's recommended to consult with a professional appraiser or a bookseller specializing in rare books and manuscripts. They can provide an informed estimate based on the factors mentioned above and current market conditions.