. "Physics in the Dark Ages." The Physics Teacher 25 (1987): 255. 



Whitney, C. "The Skies of Vincent van Gogh." Art History 9 (1986): 351. 



. "Casino Physics in the Classroom." American Journal of Physics 54 (1986): 



1079. 



Whipple, F. L. "News from Visits to Halley's Comet." In Papers Read at a Joint Meet- 

 ing of the Royal Society and the American Philosophical Society, Symposium on 

 Halley's Comet, American Philosophical Society Special Publication No. 44, vol. 2, 

 p. 1. Philadelphia: American Philosophical Society, 1987. 



Wood, J. A. "Comet Nucleus Models: A Review." In Comet Nucleus Sample Return, 

 ESA SP-249, p. 123. Paris: European Space Agency, 1986. 



. "Planning a Sample-Return Mission to a Comet Nucleus." Meteoritics 21 



(1986): 542. 



. "Was Chondritic Material Formed During Large-Scale, Protracted Nebular 



Evolution or by Transient Local Events in the Nebula?" In Lunar and Planetary 

 Science XVIII, p. 1100. Houston, Texas: Lunar and Planetary Institute, 1987. 



Worrall, D. M. "Luminosity Dependence in the Ratio of X-Ray to Infrared Emission 

 of QSOs." Astrophysical Journal 318 (1987): 188. 



. "Superluminal Radio Sources: What Does X-Ray Emission Tell Us?" In 



Superluminal Radio Sources, Proceedings of a Workshop, eds. J. A. Zensus and 

 T. J. Pearson, p. 251. England: Cambridge University Press, 1987. 



. "Correlation of X-Ray and Infrared Emission of Radio-Quiet QSOs." In 



Observational Cosmology, Proceedings of IAU Symposium No. 124, eds. A. Hewitt, 



G. Burbidge, and L. Z. Fang, p. 607. Dordrecht, Holland: D. Reidel Publishing 



Company, 1987. 

 Worrall, D. M.; Giommi, P.; Tananbaum, H.; and Zamorani, G. "A Statistical Study 



of the Relationship between X-Ray, Optical and Radio Luminosity for a Sample of 



QSOs." In Quasars, Proceedings of IAU Symposium No. 119, eds. G. Swarup and 



V. K. Kapahi, p. 263. Dordrecht, Holland: D. Reidel Publishing Company, 1986. 

 . "X-Ray Studies of Quasars with the Einstein Observatory (IV): X-Ray 



Dependence on Radio Emission." Astrophysical Journal 313 (1987): 596. 

 Yee, J.-H., and Dalgarno, A. "Radiative Lifetime Analysis of the Shuttle Optical Glow." 



Journal of Spacecraft and Rockets 23 (1986): 635. 

 . "Energy Transfer of 0( 1 D) Atoms in Collision with 0( 3 P) Atoms." Planetary 



and Space Science 35 (1987): 399. 

 Yoshino, K.; Freeman, D. E.; Esmond, J. R.; and Parkinson, W. H. "High Resolution 



Absorption Cross Sections and Band Oscillator Strengths of the Schumann-Runge 



Bands of Oxygen at 79 K." Planetary and Space Science 35 (1987): 1067. 

 Zdziarski, A. A., and Lightman, A. P. "Relativistic Plasmas in Active Galactic 



Nuclei." In Proceedings of Conference on Variability of Galactic and Extragalactic 



X-Ray Sources, ed. A. Treves, p. 121. Milan: Associazone per L'avanzaneto 



Dell'astronomia, 1987. 

 Zygelman, B., and Dalgarno, A. "Impact Excitation of the n=2 Fine-Structure Levels 



in Hydrogen-Like Ions by Protons and Electrons." Physical Review A 35 (1987): 



4085. 



173 



