An ascii drawing of the LSD molecule (from The Merck Index, 10th edition, p. 5450): H H H H \| |/ H-C--C O \ // N--C / \ H-C--C C--C C--C /| |\ / \\ // \\ H H H H C C--C C \ / \ / N--C C==C / \ / | H-C C--C | /| \\ | H H C--N