Ricin immunogenic in mice, rabbits, and humans. It has completed two successful clinical trials. Ricin has been involved in a number of incidents. In 1978, the Bulgarian dissident Georgi Markov was assassinated by Bulgarian secret police who surreptitiously shot him on a London street with a modified umbrella using compressed gas to fire a tiny pellet contaminated with ricin into his leg. He died in a hospital a few days later and his body was passed to a special poison branch of the British Ministry of Defence (MOD) that discovered the pellet during an autopsy. The prime suspects were the Bulgarian
Tip Top Weekly Tip Top Weekly Tip Top Weekly was a magazine, published by Street & Smith, which ran for more than 800 issues. It began April 19, 1896 with an August 12, 1912 title change to New Tip Top Weekly. Making a 1915 transition from a story-paper tabloid to a standard pulp magazine format, it was retitled Tip Top Semi-Monthly and then became Wide Awake Magazine from December 10, 1915 to June 10, 1916. Promoted as "an ideal publication for American Youth," this magazine featured several fictional heroes but was mainly devoted to the ongoing adventures of student Frank Merriwell, who began