James''s Powder :: "James's powder () Antimonial powder, first prepared by Dr. James, ar English physician; -- called also fever powder..
Jamesonite :: "Jamesonite (n.) A steel-gray mineral, of metallic luster, commonly fibrous massive. It is a sulphide of antimony and lead, with a little iron..
Jamestown Weed :: "Jamestown weed () The poisonous thorn apple or stramonium (Datura stramonium), a rank weed early noticed at Jamestown, Virginia. See Datura..