Describes the characteristics of the gypsy moth and browntail moth, the damage they cause, and methods of control.

Describes the characteristics of the strawberry root-worm, the damage it causes to roses, and methods of control.

Describes several different types of the American class of chicken breeds.

Describes different types of clothes moths, the damage they can cause to textiles in the home, and methods for control.

Describes the use of motor trucks on farms in the eastern United States and evaluates costs and benefits.

A consumer guide to buying, storing, and using milk.

Describes the history and varieties of citrus fruits, as well as how to plant, manage and harvest groves in the Gulf States.

Recommends methods for controlling the tobacco flea beetle in order to increase farm profits.

Discusses the methods for tobacco farming in Pennsylvania. Includes cropping systems, cultural operations, and plant diseases.

Describes customary agreements and practices for renting dairy farms in various situations.

Describes methods for fumigating citrus trees in order to control scale insects and other pests.

Provides suggestions for people interested in or involved in cooperative livestock shipping associations. Discusses organizational aspects, management, shipments, livestock marking, and business methods.

Describes wild garlic and a few methods for controlling its growth.

Describes symptoms, treatments, and prevention methods for numerous diseases and parasites afflicting poultry.

Describes the characteristics of Polish and poulard wheats, which because of their size and appearance are often sold under false claims. Warns U.S. farmers against growing them because they produce low yields and are of little commercial value in the U.S.

Describes the characteristics of carpet beetles and methods for their control.

Provides suggestions for selecting and preparing swine for livestock shows and fairs. Describes judging criteria.

This report presents a description of an abacus with three scales: one for English measures, one for metric measures, and one with the "points of reduction", as well as construction details. There is also a detailed description on how to use the abacus.

Report presenting an examination of flexible piping and some of the difficulties involved in creating satisfactory flexible pipe. The joint used to assist in the flexibility of the pipe is illustrated and described.

Note presenting the physical properties which may be demanded of fuels for aviation use and the means that may be adopted by the engine manufacturers to properly meet the demands necessitated by the use of the fuel. Some of the factors that must be considered include its composition, the quantity available, the price per heat unit, and the possibility of keeping stocks in aerial ports both at home and abroad.

The Caproni Company recently built a seaplane of unusual design. The main supporting surfaces consisted of three triplanes in tandem, the lower wings being attached to the hull, which was described as providing accommodation for a hundred passengers. On one of the first flights, the seaplane fell into a lake, nose down, and was destroyed. The authors wish to show that this failure could have been predicted.

The need for a device to measure flight resistance, engine and propeller power, and efficiency during flight grew in proportion to the demand for increased flying capacity in military types of aircraft. Here, a dynamometer hub was inserted between the engine and the propeller. Taken as a whole, the tests that were conducted show that though the dynamometer is a sensitive instrument liable to numerous derangements, it is undeniably useful even in its present form, when handled with care and skill.

Static tests fall into two groups, the first of which is designed to load all members of the structure approximately in accordance with the worst loads which they carry in flight, while the second is directed to the testing of specific members which are suspected of weakness and which are difficult to analyze mathematically. The nature of the loading in the second type is different for every different test, but the purpose of the first is defined clearly enough to permit the adoption of some standard set of loading specifications, at least for airplanes of normal design. Here, an attempt is made to carry through an analysis leading to such a standard, the goal being the determination of a load which will simultaneously impose on every member of the airplane structure a stress equal to the worst it will carry in flight.

The author discusses the limited benefits of supercharging motors and some of the factors that make supercharging less beneficial than it initially appears.