The English Works of Thomas Hobbes of Malmesbury: Seven philosophical problems. Decameron physiologicum. Proportion of a straight line to half the arc of a quadrant. Six lessons to the Savilian professors of mathematics. Stigmai, or Marks of the absurd geometry, etc., of Dr. Wallis. Extract of a letter from Henry Stubbe. Three papers presented to the Royal society against Dr. Wallis. Considerations on the answer of Dr. Wallis. Letters and other pieces