Marijuana Chemistry

Apparatus and Procedure

Isomerizer Cannabis

Those with lab apparatus can do the extraction and concentration in a standard refluxing setup (e.g., heating mantle for five liter flask with water cooled reflux head). The rest of us can manage with homemade devices such as those pictured. The water in the tub or bottom half of the double boiler heats up the solvent containing the marijuana. The warm solvent gradually extracts the cannabinoids, and some of it evaporates in the process. The solvent vapors condense on the ice-cooled lid and...

Cellular Origins of Cannabinoids

Double Cystolith

Until they are about to flower, the plants have only two types of hairs. The unicellular covering hairs (trichomes) are long and thin and end in a point (see figure 9e). These are few until the plant is one month (in warm climates) or two months in temperate climates) old. They subsequently show a gradual increase in number and are especially common on flower-bearing branches where they form a silky down. The second type of hair (cysto-lith) is short, swollen at the base and set into the...

Relative Potency of Male and Female Plants

Female Marijuana Plant Pictures

The first observations about the differences in potency of the male and female marijuana plants were probably made thousands of years ago. The ancient Indian practice of separating males Fig. 13. Anatomy of male and female Cannabis A, mature male plant B, mature male flowering branch C, immature closed male flower D, mature open male flower with 5 sepals surrounding 5 anthers E, single anther and cross section of anther containing pollen F, female flowering branch containing many flowers and...

Hashmaking in Lebanon

In 1932, Lys described the preparation of hashish in Lebanon, specifically in the areas of Zahle, Ras-Balbeck and Homs. Sometime between August and November, depending mainly on when the seeds were originally sown, the females are harvested and left for a week in the open air. The plants are then placcd in the shade for further drying. When dry, the tops are shaken and gently beaten over a cloth. The resultant powder is sieved to eliminate the larger pieces of stem and the seeds. The highest...