From Introduction: "In connection with the fuel investigations conducted by the Bureau of Mines much information has been accumulated as to the smoke abatement activities in various cities. The essential features of the information are presented in this report, which, it is believed, will be of public interest and benefit, especially to those communities that are just beginning organized effort to abate unnecessary smoke."

"The European corn borer probably is the most injurious plant pest that has yet been introduced into this country. It is now known to be present in an area of about 320 square miles near Boston, Massachusetts. Unless repressed and restricted it may be spread throughout the country and cause serious and widespread losses to the corn crop.... To suppress this pest burn or otherwise destroy during the fall, winter, or spring all cornstalks, corn stubble, crop remnants, and stalks of garden plants, weeds, or wild grasses within the infested areas likely to harbor the overwintering borers." -- p. 2. In addition to control measures, this bulletin also explains how to identify injuries caused by the corn borer and discusses its life cycle and habits.

Patent for a coin controlled machine. This invention is designed to accept coins of proper values and operation is dependent on predetermined portion of the im pressed surface of the coin. Illustrations included.

This is a letter patent for the bookbinding invention as a means for holding books, pamphlets, catalogs, and other similar paper materials together. The purpose of this invention is to make it possible to place additional material inside the same covers, and with the original contents of a book without breaking or tearing the binding.