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Small farms—of an acre or less—are homes and a part-time occupation for a rapidly increasing number of California residents. It is estimated that in Los Angeles County only, there are some 10,000 families living on such farms.

Experimental application of 2,4-D— 2,4-dichlorophenoxyacetic acid—to Bartlett pear trees for the control of drop at Davis was first made on July 3, 1947, to determine the effectiveness of the material in retarding drop, the necessary and critical concentrations and the influence upon ripening and storage quality.

Genetic studies with plants and small animals have yielded considerable information of great fundamental and economic value. Dairy cattle, on the other hand, with their long gestation period, single birth, and relatively short life span, do not lend themselves to rapid progress in compiling sufficient data for sound conclusion.

The incidence of brucellosis—sometimes called Bang's disease and infectious abortion—declined from 20.64% in 1941 to 5.53% in 1947 in an experimental vaccination program with heifer calves in dairy herds in Monterey County.

Nematode injury to the roots of trees and vines frequently is responsible for the appearance of aboveground symptoms of disease. These symptoms are variable since their expression may be influenced by such factors as soil type, soil fertility, irrigation practice, presence of other root parasites, age of the plant, and the severity of the root injury.

Establishment of disease-free citrus lines from infected lines may be possible by means of nucellar seedlings.

Soil bacteria are useful in studying the basic chemical processes that occur in all living organisms.

Control of weeds in flax may be accomplished by crop rotation, by cultural practices, and by chemical weed control.

Certain types of irrigation water may be harmful eventually to plant growth.

Strength and appearance of redwood boards are not synonymous as far as durability is concerned.