I couldn't find a direct link to a PDF download of "Opium for the Masses" by Jim Hogshire. However, it's possible that the document is available on various online platforms, such as:

The raid was triggered by an unlikely source: an argument with fellow author Bob Black, who contacted the police claiming Hogshire’s apartment was a drug laboratory where he was trying to manufacture heroin. To support his claim, Black pointed to the fact that Hogshire had written Opium for the Masses .

Opium for the Masses: Harvesting Nature's Best Pain Medication

The book discusses the long history of poppy cultivation and the traditional uses of the plant across different cultures. Botanical Study:

Jim Hogshire's Opium for the Masses Internet Archive is a seminal piece of underground literature that explores the cultural history, botany, and legal politics of the opium poppy ( Papaver somniferum ). First published in 1994 by Loompanics Unlimited and later reprinted by Feral House