From Preface: "The purpose of such publication is to point out the laws and regulations best adapted to increase safety and efficiency in the mineral industry of the United States and to aid legislative bodies in framing uniform mining laws. The State of California, by reason of its historic interest in mining and by reason of its great extent of mineral land and its vast mineral deposits, has been selected for the first bulletin of the of the State series. This bulletin is submitted to the miners and operators and all persons interested in the mining exterprises in California and in those of other States in the hope that it will be accorded the same generous reception as was given Bulletin 94."

Report discussing methods of shutting off water in oil and gas wells in California, the Midwest, and the Gulf. Emphasis is on the methods used in California and suggestions for modifying California methods to make them applicable in other localities.

Technical paper issued by the Bureau of Mines over the black sands of Oregon and California. The history, and character of the deposits are presented. This paper includes tables, maps, photographs, and illustrations.