42 ANNUAL EEPOET SMITHSONIAN INSTITUTION^ 1920. 



Other 11112)10 vements in this building from the regular Museum 

 appropriation included repairs of settlement cracks in Venetian floors 

 in exhibition halls, the pointing up of cracks and painting the walls 

 and ceiling of these halls, painting ^Yalls and ceilings of comfo.'t 

 room and rooms 223 and 224 on third floor, painting floors in west 

 north and west ranges, repointing open seams in the granite courses 

 and ledges on exterior and court Avails and the stone steps at south 

 entrance, the painting of exterior surface of metal window frames of 

 first and second stories, and painting gutters. The building in the 

 east court was remodeled for use as a laboratory. 



In the Arts and Industries Building the exterior woodwork of the 

 windows was painted; a number of walls in the exhibition halls, 

 offices, and laboratories were repainted, including the cafe; and an 

 additional dark room was constructed in the photographic laboratory. 



An improved system of ventilation was installed in the mascerating 

 room in the south shed. 



The deficiency act above referred to also provided the sum of 

 $14,000 to enable the regents of the Smithsonian to heat and fit up for 

 the exhibition of aircraft and accessories the temporary metal struc- 

 ture erected in the Smithsonian Grounds by the War Department, 

 with the understanding that the custody and control of the building 

 be transferred to the regents of the Institution by the Secretary of 

 War. Immediately after the building was turned over to the Insti- 

 tution in November, the old heating equipment was condemned and 

 sold and arrangements made to heat and light the building from the 

 power plant of the National Museum. Steam pipes were run from 

 the Arts and Industries Building, and electric lights were provided 

 for use on dark days and for police purposes at night. 



To make the interior of the building suitable for exhibition' pur- 

 poses, a concrete floor was laid in place of the wooden floor, which 

 had deteriorated to an extent that made its use impossible. The 

 entire ceiling and side walls were sheathed, covered with wall board, 

 and painted. Ventilators were installed at either end of the build- 

 ing, a concrete platform constructed at the east end of the build- 

 ing, and a glazed vestibule built at this end to be used as a public 

 entrance. A combination storage, workroom and office was parti- 

 tioned off in the southeast corner and a new comfort room constructed. 

 The doors on the north side were closed, two doors on the west side 

 remodeled as emergency exits, and the exterior of the building was 

 painted. 



The additions to the furniture this year included 30 exhibition cases 

 and bases, 229 storage cases and pieces of laboratory and office furni- 

 ture, 198 standard unit drawers, 602 insect drawers, and 388 special 

 drawers. 



