The following preprints were submitted during the period 1 May to 31 July 1997. Please direct all requests for copies of preprints to the NOAO author marked with an asterisk.
744 *Ajhar, E.A., Lauer, T.R., Tonry, J.L., Blakeslee, J.P., Dressler, A., Holtzman, J.A., Postman, M. "Calibration of the Surface Brightness Fluctuation Method for Use with the Hubble Space Telescope"
745 Malhotra, S., *Rhoads, J.E., Turner, E.L. Through a Lens Darkly: Evidence for Dusty Gravitational Lenses"
746 *Pilachowski, C., Sneden, C., Hinkle, K., Joyce, R. "Carbon Isotope Ratios from the First Overtone CO Bands in Metal Poor Giants"
747 *Smith, P.S., Schmidt, G.D., Allen, R.G., Hines, D.C. "HST and Ground-Based Observations of I Zw 1 and Mrk 486 and the Variability of Polarization in Radio-Quiet AGNs"
748 Yanny, B., *Jannuzi, B.T., Impey, C. "HST Imaging of the BL Lacertae Object OJ 287"
749 *Layden, A.C., Sarajedini, A. "The Globular Cluster M54 and the Star Formation History of the Sagittarius Dwarf Galaxy"
750 Burkholder, V., *Massey, P., Morrell, N. "The "Mass Discrepancy" for Massive Stars: Tests of Models Using Spectroscopic Binaries"
751 Laor, A., *Jannuzi, B.T., Green, R.F., Boroson, T.A. "The UV Properties of the Narrow Line Quasar I Zwicky 1"
752 *Jannuzi, B.T., Yanny, B., Impey, C. "HST Imaging of the Host Galaxies of Three X-Ray Selected BL Lacertae Objects"
753 *Dey, A., van Breugel, W., Vacca, W.D., Antonucci, R. "Triggered Star Formation in a Massive Galaxy at z=3.8: 4C 41.17"
754 *Joyce, R.R. "Infrared Spectroscopy of Faint High Galactic Latitude Carbon Stars"
755 *Vukobratovich, D., Gerzoff, A., Cho, M.K. "Therm-optic Analysis of Bi-metallic Mirrors"