46 Report of the President 



calling for their replacement by those better adapted for Fossil 

 Vertebrates. 



A large and important part of the work of construction is 

 never seen by the visitor and but little noticed even by the 

 Museum Staff. This is the construction or alteration of rooms 

 for storage, work and service. Thus the printing offices have 

 again been extended, including a new fireproof storage room; 

 a new office has been constructed for Vertebrate Palaeontology, 

 and the room for the attendants made over with needed sanitary 

 improvements, and the first of a series of storerooms for skeletal 

 material built in the attic. 



A branch of work that is not realized by the public and little 

 appreciated by Museum officers is that of electric lighting. 

 Twenty years ago, ten years even, no one realized the extent to 

 which electric lights would be used in museums in connection 

 with groups, motion picture service and special exhibits; hence 

 no provision was made for them. New installations have taxed 

 the ingenuity of the Chief Engineer to the utmost to make provi- 

 sion for them, and have increased the work of the electricians 

 to such an extent that the present force is entirely too small to 

 keep up with it. More than this, the limit of the present gen- 

 erators has been reached. 



It is- again the duty of the Director to call attention to the 

 need of a fence to protect the Museum from damage by children. 

 While the most serious injury was that caused by 

 B^ldi ° ^ e ^ re t ^ iat destroyed the whale shed in February, 



1920, yet during the past year the actual loss from 

 broken windows and shrubbery was just inside a thousand 

 dollars. 



