460 NEW YORK STATE MUSEUM 



though in certain directions they have been the subject of a criti- 

 cism whose very rawness has deprived it of force. 



The study of the Bryozoa happened, in the plans of Prof. Hall,, 

 to be involved with that of the corals; and, as Mr Simpson was 

 called on to make the necessary drawings of these organisms 

 also, and again the execution of the work was dependent on the 

 correct representation of fine internal, structural characters, the 

 artist acquired a detailed knowledge also of these obscure char- 

 acters. Mr Simpson supplied all descriptive matter pertaining 

 to the corals published from 1880 to 1890. For some time before 

 the death of Prof. Hall material was being gathered and studied 

 for a more comprehensive memoir on the genera and species of 

 the extinct corals; and on the drawings and descriptive part of 

 this work Mr Simpson labored faithfully to within a few months 

 of his death. Thus in this field too we shall find ourselves owing 

 much to his fine powers of observation. 



Mr Simpson married in 1891 Miss Abigail L. Soule, who sur- 

 vives him. 



J. M. C. 



