The following preprints were submitted during the period 1 December 1998 to 28 February 1999. Please direct all requests for copies of preprints to the NOAO author marked.
822 *Lauer, T.R., "Combining Undersampled Dithered Images"
823 *Suntzeff, N.B., et al., "Optical Light Curve of the type Ia Supernova 1998bu in M96 and the Supernova Calibration of the Hubble Constant"
824 *Armandroff, T.E., Da Costa, G.S., "The Andromeda Dwarf Spheroidal Galaxies"
825 *Keller, C.U., "Optimum Apodization for Speckle Imaging of Extended Sources"
826 *Keller, C.U., "An Advanced Solar Telescope: I. Science Goals"
827 Bell, E.F., *Hill, F., Harvey, J.W., "Estimation of Seeing Quality Using Low-Resolution Solar Image Data"
828 *Jacoby, G.H., Ciardullo, R., "Chemical Abundances of Planetary Nebulae in the Bulge and Disk of M31"
829 *Pilachowski, C.A., Barden, S.C., "Future Prospects for Spectroscopy with Large and Small Telescopes"
830 *Brown, C.L., "A VBA Desktop Database for Proposal Processing at National Optical Astronomy Observatories"
831 *Howard, R.F., Gupta, S.S., Sivaraman, K.R., "Measurement of Kodaikanal White-Light Images. II. Rotation Comparison and Merging with Mount Wilson Data"