CONTENTS 



A. B. Stout (by invitation): Experimental studies of self-incompatibilities in 

 fertilization. 138 (1316). 



I. Strauss and I. Friesner (by invitation): A demonstration of cerebellar and 

 cerebral lesions in dogs. 139 (1317). 



H. C. Sherman and D. E. Neun: Amylase and protease action of some pancreas 

 preparations. 140 (1318). 



Helen C. Coombs and F. H. Pike: The role of afferent impulses in the control of 

 respiratory movements. 141 (1319). 



Oscar Riddle: A case of hereditary ataxia (?) in pigeons. 142 (1320). 



Martha Wollstein and S. J. Meltzer: Chemical pneumonia. 143 (1321). 



Eugene L. Porter (by invitation): Changes in reflex thresholds following experi- 

 mental shock from intestinal manipulation. 144 (1322). 



David I. Macht, S. Isaacs and J. P. Greenberg: On the influence of some anti- 

 pyretics on the neuro-muscular coordination test of "tapping." 14s (1323). 



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