The following preprints were submitted during the period 2 February through 9 May 2000. Please direct all requests for copies of preprints to the NOAO author marked.
867 *Massey, P., Guerrieri, M., Joyce, R.R., "The Number of Publications Used as a Metric of the NOAO WIYN Queue Experiment"
868 *Massey, P., Waterhouse, E., DeGioia-Eastwood, K., "The Progenitor Masses of Wolf-Rayet Stars and Luminous Blue Variables Determined from Cluster Turn-offs. I. Results from 19 OB Associations in the Magellanic Clouds"
869 *Barden, S.C., Arns, J.A., Colburn, W.S., Williams, J.B., "Volume-Phase Holographic Gratings and the Efficiency of Three Simple VPH Gratings"
870 *Cecil, G., "First Generation Instruments for the SOAR 4.25m Telescope"
871 *Pilachowski, C.A., Sneden, C., Kraft, R.P., Harmer, D., Willmarth, D., "A Survey for Enhanced Lithium in 261 Globular Cluster Giants"
872 Vaughnn, D., *Claver, C.F., Richardson, E.H., "A Four-Quadrant Error Sensor which Yields Position and Focus Utilizing an Internal Mirrorlette Array"
873 *Bohannan, B., Pearson, E.T., and Hagelbarger, D., "Thermal Control of Classical Astronomical Primary Mirrors"
874 *Sawyer, D.G., Corson, C., Saha, A., "Optimizing the Delivered Image Quality at the WIYN 3.5-m Telescope"
875 *Barden, S.C., Harmer, C.F.W., Claver, C.F., Dey,A., "Optical Design for a 1-Degree FOV, 30-meter Telescope"
876 *Barden, S.C., Harmer, C.F.W., Blakley, R.D., Parks, R.J., "NOAO's Next Generation Optical Spectrograph"
877 *Mighell, K.J., "Astrometry of the w Centauri Hubble Space Telescope Calibration Field"