My collaborators in this field of work, Dr. E. M. K. Geiling, Dr. 

 C. A. Rouiller and Dr. David Campbell and I hope to be able in due 

 season to publish more extensive reports on the various researches 

 which naturally arise in the investigation of the properties, chemical 

 and biological, of the pure product. 



^Abel, J. J., and Geiling, E. M. K., Jour. Pharm, and Expcr. Therap., 25, 423, 

 1925. 



"Abel, J. J., Geiling, E. M. K., Alles, G., and Raymond, A., Science, 67, 169, 

 1925. 



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