378 OSCAR W. RICHARDS 



RESOLUTION 



15. Magnan, C, P. Chanson, and A. Ertaud, Conipt. rend., 220, 770 (1945) 



(proton microscope) . 



16. Merling-Eisenberg, K. B., /. Quekett Microscop. Club, 1, 311, 322 (1937). 



17. Lucas, F. F., /. Franklin Inst., 217, 661 (1934). 



INFRARED 



18. Clark, W., Photography by Infrared. 2nd ed., Wiley, New York, 1946. 

 18a. Bailly, R., Science, 108, 143 (1948); Am. Mineral, 33, 519 (1948). 



ULTRAVIOLET 



19. Brumberg, E. M., Nature, 152, 357 (1943); Compt. rend. acad. sci. 



U. R. S. S., 52, 499 (1946). 



20. Caspersson, T., J. Roy. Microscop. Soc, 60, 8 (1940). 



21 . Kohler, A., Z. wiss. Mikroskop., 21, 129 (1904). 



22. Lavin, G. I., Rev. Sci. Instruments, 14, 375 (1943). 



23. Trivelli, A. P. H., and R. P. Loveland, J. Optical Soc. Am., 20, 97 



(1930). A. P. H. Trivelli and L. V. Foster, ibid., 21, 124 (1931). 



24. Hamos, L. v., and A. Engstrom, Acta Radiol, 25, 325 (1944). 



OPTICAL STAINING 



25. Royer, G. L., C. Maresh, and A. M. Harding, /. Biol. Phot. Assoc, 13, 



123 (1945). 



26. Grossman, G., Anat. Record, 99S, 30 (abstract) (1947); /. Optical Soc. 



Am., 38, 417 (1948); Stain Technol., 24, 61 (1949). 



POLARIZATION MICROSCOPY 



27a. Drabkin, D. L., J. Biol. Chem., 164, 703 (1946). 



27b. Waugh, D. F., and F. 0. Schmitt, Cold Spring Harbor Symposia Quant. 

 Biol, 8, 233 (1940). 



28. Mehl, J. W., ibid., 6, 218 (1938). 



29. Picken, L. E. R., Biol. Revs. Cambridge Phil. Soc, 15, 133 (1940). 



30. Schmidt, W. J., Die Bausteine des Tierkorpers in polarisiertem Lichte. 



F. Cohen, Bonn, 1924. 

 30a. Jelley, E. E., "Microscopy," in Physical Methods of Organic Chemistry. 

 A. Weissberger, ed., 2nd ed., Interscience, New York, 1949, Chap. XV. 



FLUORESCENCE MICROSCOPY 



31 . Richards, 0. W., in Medical Physics. 0. Glasser, ed., Year Book Pub- 

 • lishers, Chicago, 1944. (See forthcoming 2nd ed. for more detail.) 



31a. Keller, R., and B. V. Pisha, Clin. Med., 54, 394 (1947). 



32. ElHnger, P., Biol. Revs. Cambridge Phil. Soc, 15, 323 (1940). 



33. Haitinger, M., Fluorescenzmikroskopie. Akadem. Verlagsgesellschaft, 



Leipzig, 1938. 



