"1) Grind up 150 grams of Morning Glory seeds or baby Hawaiian wood rose seeds.
2) In 130 cc. of petroleum ether, soak the seeds for two days.
3) Filter the solution through a tight screen.
4) Throw away the liquid, and allow the seed mush to dry.
5) For two days allow the mush to soak in 110 cc. of wood alcohol.
6) Filter the solution again, saving the liquid and labeling it "1."
7) Resoak the mush in 110 cc. of wood alcohol for two days.
8) Filter and throw away the mush.
9) Add the liquid from the second soak to the solution labeled "1."
10) Pour the liquid into a cookie tray and allow it to evaporate.
11) When all of the liquid has evaporated, a yellow gum remains. This should be scraped up and put into capsules.
30 grams of Morning Glory seeds = 1 trip
15 Hawaiian wood rose seeds = 1 trip

Many companies, such as Northop-King have been coating their seeds with a toxic chemical, which is poison. Order seeds from a wholesaler, as it is much safer and cheaper. Hawaiian wood rose seeds can be ordered directly from:

Chong's Nursery and Flowers
P.O. Box 2154
Honolulu, Hawaii"

This is originally from "The Anarchist's Cookbook" and i've never tried it.