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12 March 1952

Unfortunately, I received the information which I an setting out belox sybsequent to the writinr, of the othor lntter in this envelope. Since I havo taken the liberty of asking you a nunbcr of questions, I will add this problem to the list.

I have been informed there is a drut known as Tabun vhich posoibly may act along tho lincs of a"truth serum". The name, Tabun, nay ho of Tritish origin, although I havo no-specific information on this.

My information indicates that Tabun gives off the odor of rotting fruit and is accompanied by a tomporary inpairment of vision, violent hendaches, a tight foelinz in the chest, and an .inahility in the subject to make a discrininating reaction to questioning.

My infcrnation also indicates that Tahun is safe  uso ant relief from the drug may be obtained by application of atropine sulfate to ths eyes or less quickly by injection.

Are you faniliar with this drug or chomical, or does it have a comon nane so that, I can resoarch on it?

Since my infonation cones from secret sources, it would be appreciated if you treat this as you havo all the other mattors in great confidence.

A/8 5,240/2