All, As an avid flea market, thrift store, and garage sale guy, I often see various books and publications regarding tropical plants. The ones that interest me the most are reference materials, usually dating back to the 1940's and 1950's. Does anyone suggest, aside from ebay, where to find old book about crotons? Are there only a few written? When was the first croton reference book written? Was it by Brown? Are there any earlier Croton author/pioneers? I have found infinate early publications about palms, but very few about crotons.