Ergot
<p>Ergotamine one of the ergot derived alkaloids was first isolated from the ergot fungus by Stoll at Sandoz in 1918 and marketed as Gynergen in 1921.</p>
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page 147.
A Review of the Chemical Work Done on the Active Principle of Ergot.</p>
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<a href="http://books.google.com/books?id=Q04-AQAAMAAJ&pg=PA171&lpg=PA171&dq=ergot+barger+carr&source=bl&ots=-JJcI9L2Lk&sig=YEz33hxGBpaSm7He4CWJJ3OTtq4&hl=en&sa=X&ei=GOOPU47CHIncoASqhYHgDQ&ved=0CDEQ6AEwAg#v=onepage&q=ergot%20barger%20carr&f=false">http://books.google.com/books?id=Q04-AQAAMAAJ&pg=PA171&lpg=PA171&dq=ergot+barger+carr&source=bl&ots=-JJcI9L2Lk&sig=YEz33hxGBpaSm7He4CWJJ3OTtq4&hl=en&sa=X&ei=GOOPU47CHIncoASqhYHgDQ&ved=0CDEQ6AEwAg#v=onepage&q=ergot%20barger%20carr&f=false</a></p>
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"In 1935 the specific oxytocic principle of ergot, ergonovine, was discovered simultaneously in four separate laboratories."</p>
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<a href="http://www.ncbi.nlm.nih.gov/pubmed/347462">http://www.ncbi.nlm.nih.gov/pubmed/347462</a></p>
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Ergot use in 1895--not as psychedelic, but for inducing labor. </p>
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<a href="http://books.google.com/books?id=0pNXAAAAMAAJ&pg=RA1-PA206&lpg=RA1-PA206&dq=keller+ergot&source=bl&ots=Oc8QB0gY3F&sig=bTv3tis2xXLcqJ_zZ9OyP-EkuhI&hl=en&sa=X&ei=iuGPU7yGGcmEogTUpoAQ&ved=0CFMQ6AEwBQ#v=onepage&q=keller%20ergot&f=false">http://books.google.com/books?id=0pNXAAAAMAAJ&pg=RA1-PA206&lpg=RA1-PA206&dq=keller+ergot&source=bl&ots=Oc8QB0gY3F&sig=bTv3tis2xXLcqJ_zZ9OyP-EkuhI&hl=en&sa=X&ei=iuGPU7yGGcmEogTUpoAQ&ved=0CFMQ6AEwBQ#v=onepage&q=keller%20ergot&f=false</a>
"''Medical Management of Biological Casualties,'' a handbook issued in 1996 by the Army Medical Research Institute of Infectious Diseases at Fort Detrick, Md., says that two of the earliest reported uses of biological weapons in war occurred in the sixth century B.C. when the Assyrians poisoned enemy wells with rye ergot (a fungus disease), and Solon used the purgative herb hellebore during the siege of Krissa."
<a href="http://www.nytimes.com/1998/09/19/arts/biological-weapons-literally-older-than-methuselah.html">http://www.nytimes.com/1998/09/19/arts/biological-weapons-literally-older-than-methuselah.html</a> </p>