The American Protective Tariff League offers to undergraduate seniors in the colleges of the United States a series of prizes for approved essays on the "Effect of Protection on the Purchasing Power of Wages in the United States." The essays are not to exceed eight thousand words and must be sent to No. 23 West Twenty-third Street, New York, before March 1, 1891. Awards will be made June 1st, 1891, as follows: For the best essay, one hundred and fifty dollars; for the second best, one hundred dollars; for the third best, fifty dollars. The silver medal of the League will be awarded to the authors of other essays deemed especially meritorious.