Here are some subject headings and call numbers to use when searching library catalogs:
Moctezuma's Mexico by Available at the Free Library of Philadelphia.
To borrow these books, copy and paste the book titles into an email and send to mcleanlibrary@pennhort.org.
Be sure to include your contact information and PHS membership number.
The Amateur's Book of the Dahli by 
Dahlias: What is Known About Them by 
Encyclopedia of Dahlias by 
The Plant Lover's Guide to Dahlias by 
