Life Sciences Commons^™

Tannin Content Of English Walnuts : Thesis ..., Joseph G. Natoli

University of the Pacific Theses and Dissertations

Present methods for the production of leather from animal hides still depend from the most part on the use of natural tannin extracts. During the year, 1952, the amount of natural tannin extracts used by the leather industry was 560,452,119 pounds as compared to 35,793,000 pounds of synthetic tanning materials. It is not as yet possible to produce synthetic materials as economically as the natural extracts; the result being that there is still a very great demand for natural tannin extracts. The need for finding new domestic sources of tannins is apparent when the amounts of domestic and imported extracts …

Tannin Content Of Certain California Oaks, Arthur Carton

University of the Pacific Theses and Dissertations

The purpose of this paper is to investigate three California oaks as possible sources of tannin. Even though the study of the three varieties of tree may not be representative samples, the procedures developed may prove to be valuable in a more extensive research by other workers.

Crop Damage By Wildlife In California ; With Special Emphasis On Deer And Waterfowl, Earl Roy Biehn

University of the Pacific Theses and Dissertations

The problem of crop damage by wildlife is not a new one in California, but it has assumed a role of major economic importance only during the last few decades. Since this problem was first encountered in California, it has steadily increased in size and scope, until today in many areas of the state it is an important economic problem of the farmer; a pressing management problem for the biologists and wildlife technicians of the California Division of Fish and Game; a constant challenge to the game management agents of the Federal Fish and Wildlife Service; a great concern of …

Student Agricultural Work Experiences In San Joaquin County, With Particular Reference To The Work Experiences Of Students Of Stockton And Lodi Public Schools In The Summer Of 1942, Frank L. Nash Jr.

University of the Pacific Theses and Dissertations

As early as February, 1942, fears of an agricultural labor shortage began to be expressed in California. The Pacific Southwest Area Committee of the Young Men’s Christian Association asserts in a statement of policy on Emergency Harvest Camps, “The California State Chamber of Commerce’s Central Coast Council’s Agricultural Committee points out that ‘the removal of enemy aliens from coastal areas, the absorption of migrant workers into defense industries, and increased government quotas for the production of many crops has created a serious agricultural problem.’ (News release, February 28, 1942).”

In San Joaquin County 5,000 Japanese were evacuated. Most of these …