The following opioid books are already circulating in electronic format:

Analgesics: From Chemistry and Pharmacology to Clinical Applications, edited by Buschmann et al.
Central Analgetics by Lednicer
Synthetic Analgesics Part I: Diphenylpropylamines by Paul Janssen
Synthetic Analgesics Part IIA: Morphinans by Hellerbach et al and Synthetic Analgesics Part IIB: 6,7 Benzomorphans by Eddy and May

I have it on good authority that the following book should be available electronically for bees and other interested parties soon:
Opioid Analgesics: Chemistry and Receptors by Casy and Parfitt

Are there any other books on the topic worth scanning? I have identified these possible candidates:
Analgetics - George deStevens (or de Stevens)
Symposium on Analgesics - E.S. Vizi
Analgesic Drugs - James Parkhouse

I'm interested only in older books that publishers won't digitize themselves. I'm also interested only in books with chemistry content, not just biology, receptors, or clinical use.

The Chemistry of the Morphine Alkaloids
K.W. Bentley
1954
452 pages

Over at Sciencemadness Globey previously posted a hasty camera-snap version of this book. But his file was a huge download, impossible to search, hard to read. This is properly scanned with OCR.

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