Tertiary Boulders in the Cretaceous of Puerto Rico.

Quantitative Stfdies on Proteolipide as Incitant of Disseminated Encephalomyelitis in Mice: Chloe Tal and Peter K. Olitsky 420 Fluorescence in -Ultraviolet Light jn--the Study of Boron Deficiency in Celery: Arthur B. Spurt 421 Absence of PhotoiWn in Tl Bacteriophage Irradiated with Ultraviolet in the Dry tate: Ruth F. ill and Harald H. Rous_ _ ---____ _ _ _ 424 Greater Resistance of, the Female to Experimental Burns Following Starvation: L. P. Munan and A. Einheber 426 The Effect of Applied Sugars, Light Intensity, and Temperature upon the Chemical Defoliation of Cotton:-Harry C. Lane and Wayne C. Hall 427