Xll COOPERATION 



W. M. Shanklin, American University of Beirut, Beirut, Lebanon, March 30, 

 1951. 

 Pineal. 



Silver Diaminohydroxide after Sensitizing with Sodium Sulfite for Neu- 

 roglia. 

 R. E. Stowell, Department of Oncology, University of Kansas Medical Center, 

 Kansas City 2, Kansas, January 19, 1951. 

 Photoelectric Microphotometer. 

 Charlotte M. Street, Department of Anatomy, Cornell University Medical 

 College, New York, New York, May 21, 1951. 

 Papanicolaou Techniques in Exfoliative Cytology. 

 Lloyd E. Thomas, Department of Biochemistry, University of Missouri School 

 of Medicine, Columbia, Missouri, July 8, 1951. 

 Arginine Reaction. 

 Mildred Trotter and O. H. Duggins, Department of Anatomy, Washington 

 University School of Medicine, St. Louis 10, Missouri, May 8, 1951. 

 Hairs. 

 L. F. Wicks, Veterans Administration Hospital, Jefferson Barracks, Missouri, 

 February 1, 1951. 

 Hydrogen Ion Indicators. 

 Piccolyte Resins. 

 G. B. WiSLOCKi, Department o Anatomy Harvard Medical School, Boston 15, 

 Massachusetts, March 8, 1951. 

 Placenta. 

 R. C. Williams, Department of Biochemistry, University of Cahfornia, Berkeley, 

 California, June 9, 1950. 



Shadow- Casting (with W. T. Dempster) 



