Entered accor ling to Act of Congress, in the year 1864. by

WILLIAM 11. DENNET,

in the Clerk's Office of the District Court of the District of Massachusetta

II.

III

Reduction and Classification of Equations.

Solution of Equations of the First Degree, with one

unknown quantity.

50

50

59

IV. Equations of the First Degree containing two or

more unknown quantities.

CHAPTER IV.