In personal news, from 4 pulls of 0.8-1mL hot solvent per gram bark each, SWIM made 4 pulls last week from his 100g bark which yeilded white crystals with some yellow tint and were weighed at 320mg. This was combined with 100mg his friend had stored away and 4 people were dosed orally with 3.5g powdered p. harmala seeds, followed in 40 minutes by approximately 100mg extracted crystals. Though two of SWIM's friends were violently ill for some time, all 4 were extremely pleased with the experience and SWIM himself (a veteran of many a psychedelic experience) was blown away in the best possible manner. A 5th pull was attempted out of curiosity and netted an amount eyeballed at 40-50mg. He intends to continue extracting from his solution until the yeilds no longer seem worth the time, then attempt a toluene extraction in search of red "jungle spice". SWIM reports that the initial 3 pulls netted very clean, very white crystals when the jar was scraped with a spatula while they were slightly damp, and the jar was then scraped with a round tipped knife which collected about 40mg yellow goo which crystallized to soft yellow crystals. For the 4th and moreso the 5th pull, solvent was reused, and the spatula-scraped crystals came out somewhat yellow and dirty looking, and the knife-scrapings netted a brown goo which dried incompletely and appears as earwax (this has been saved for eventual recrystallization from the sum of all similar waste). His solvent is now a pale yellow. He intends to attempt his next pull with fresh, unused solvent and see what happens. MrM: though I don't believe what SWIM is using is "white spirits", I anticipate your next extraction from a base solution that has not been sitting as long will come up cleaner. If you recrystallize anyway this might not be much of a concern to you but I've heard and also observed the "mimosa gunk" becomes more NP-soluble over time in the basified water. DreaMTripper: no Methanol is soluble in water and won't seperate to the top... and personally I'd recommend avoiding anything containing chlorine atoms.