A mini-array for large air showers

A mini-array that utilizes the Linsley effect is proposed for the measurement of large air showers. An estimate of the detectable shower rates for various shower sizes is made. Details of the detection and data collection systems are also described

Stabilization, pointing and command control of a balloon-borne 1-meter telescope

A 1-meter balloon-borne telescope has been constructed and flown to observe far-infrared radiation from celestial sources. The attitude control systems must perform to the diffraction limit of the telescope for stabilization and have positioning capability for source acquisition. These and associated systems are discussed in detail, as is the command control of the payload as a whole

Letter from Ann L. Hazen

Letter concerning a position in Domestic Science at Utah Agricultural College

Book Review: \u3ci\u3eSecurities Regulation: Materials for a Basic Course\u3c/i\u3e by David L. Ratnert

In response to the restrictions and practices established under federal and state securities legislation—such as the registration and disclosure requirements of the Securities Act of 1933, applicable state blue sky laws, and the ever-increasing scope of the federal anti-fraud provisions of the Exchange Act, as well as the attorney\u27s role in advising corporate and other business clients and preparation of materials for the Securities and Exchange Commission (with concomitant chance that investors may well expose him or her to potential liability for any inaccuracies or other improprieties)—institutions of legal education have adjusted their curricula by offering a choice of upper-level study over and beyond the traditional basic survey course of corporation law. These advanced courses give students an in-depth exposure to the more technical areas of business planning, corporate finance, and securities regulation. The Jennings and Marsh text on the laws governing securities distributions and trading was the only comprehensive case approach to the securities laws on the market until the appearance of Professor David L. Ratner\u27s new book. His book has arrived during a period when changes in this area of the law are occurring as rapidly as at any time since the first congressional action forty-two years ago