1973

Skunks Shoot Back by William Stewart (page 1) The Daily Plan: A Management Factor by Rob McIntyre (2) Teed Off by Samuel Pavadore (3) A Responsible Neighbor by Gerald Moscato (4) Drainage by David Clement (A-1) Fairway Renovation at Baltusrol Golf Club by Joseph R. Flaherty (A-4) Converting to Kentucky Bluegrass Fairways by Thomas Rewinski (A-10) Grooming the Golf Course by Melvin B. Lucas, Jr. (A-12) Turf Diseases of 1972, Controls and Prevention for 1973 by Stanley J. Zontek (A-13) Noncropland Weed Control by John E. Gallagher (A-16) Soil Factors Affecting Arsenic Toxicity by Robert N. Carrow (A-24) The Necessity of Cart Paths and Traffic Regulations by William G. Buchanan (A-27) Herbicides for Turfgrass Areas by John A. Jagschitz (A-29) Perspectives on Lawn Making and Keeping by Robert Schery (A-33) Stadium Turf Maintenance by George P. Toma (A-39) Highway Turfgrass by Robert W. Duell (A-44) Cemetery Maintenance by Martin Stolpe (A-50) Keeping Records by Al Barauskas (A-54) Planning Capital Expenditures by Sherwood A. Moore (A-59) British Golf Course Architecture -Historical Influences- Current Trends by F.W. Hawtree (A-64) Golf Course Architecture in North America By Geoffrey S. Cornish (A-70

On the structure of admissible linear estimators

AbstractUsing a technique originated by A. Olsen, J. Seely, and D. Birkes (Ann. Statist. 4 (1976), 878–890) and developed by L. R. LaMotte (Ann. Statist. 10 (1982), 245–256) we establish necessary conditions of C. R. Rao's type (Ann. Statist. 4 (1976), 1023–1037) for a linear estimator to be admissible among the class of linear estimators in a general linear model. They are shown to be sufficient for the regression model with a nonnegative definite covariance matrix and for the model with the mean lying in a subspace and the covariance operators varying through the set of all nonnegative definite symmetric matrices. From these results necessary and/or sufficient conditions for admissibility of nonhomogeneous estimators are also derived