The Plan also makes provision for exceptional cases : leave 

 of absence without pay ; absence from the service for a certain 

 period ; return to the service, and the reduction of present rate 

 of contribution when feasible. 



We trust that after reading this brief synopsis of the Plan 

 you will agree with the Museum authorities that a broad, com- 

 prehensive and equitable system has been instituted for the 

 protection of the worker and for the benefit of the efficient, 

 faithful and long service employee. 



Very truly yours, 



Henry Fairfield Osborn 



February 1, 1916. 



