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A pathetic incident of the first session of the centenary celebration of the 

 Academy was the announcement of the death that morning (March 19, 1912) 

 of Thomas Harrison Montgomery, Jr., Ph.D. He had contributed the first 

 memoir to this commemorative volume and had taken an active and generous 

 interest in the anniversary. The paper which follows is the last written by 

 Dr. Montgomery and the untimely conclusion of his labors is deeply regretted. 

 Eloquent testimony to his charm as a man and his ability as a student has been 

 borne elsewhere. The superior quality of his work and the importance of the 

 discoveries that had already rewarded his researches gave promise of a future 

 career of unusual distinction as a biological investigator. The Academy deplores 

 the loss of an earnest, conscientious, and generous associate. 



E. J. N. 



