36 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1962 



masks and machines used in anesthesia, the development of electro- 

 cardiographs, early pharmaceutical mortars and pestles, and dental 

 drilling. 



A fine collection of original machine tools was obtained and a dozen 

 models illustrating the development of tools for mass production were 

 completed. One of the exhibits in the hall of tools will be a reproduc- 

 tion of a 13th-century stained-glass panel from the Cathedral of 

 Chartres depictmg a wood turner at work. 



A special case was built to exhibit a reproduction of the DeDondi 

 clock, the earliest Imown mechanical clock about which details have 

 survived. This will be one of the featured exhibits in the hall of light 

 machinery. Construction of a series of enlarged escapement models 

 illustrating significant clock and watch mechanisms was in progress. 

 Designs and specifications for a full-size operating tower clock, to be 

 installed in the horology section of the light machinery hall, have been 

 developed. 



For the hall of civil engineering eight scale models illustrating the 

 historic development of soft-ground and hard-rock tunneling in 

 Europe and America were completed. In the refrigeration section of 

 the hall of heavy machinery, a number of demonstrations of the prin- 

 cipally employed refrigeration cycles wUl be featured with examples 

 of refrigeration machinery. Exhibits interpreting early physical 

 science were completed, and additional units in both classical and 

 applied physics were prepared. 



In December 1961, the 92-foot, 280-ton Pacific-type locomotive 

 "1401," a gift of the Southern Railway System, was the first exhibit 

 to be installed in the new Museum of History and Teclinology 

 Building. 



Three vehicles which will be exhibited in the hall of automobiles and 

 coaches in the new museum were restored. The Lawrence coach, a 

 gift of Mrs. Richard Saltonstall, was placed on display in the Arts 

 and Industries Building in May 1962. The Winton Bullet and Haynes 

 automobiles were restored and returned to exhibition in the hall. 



During the year an Edison incandescent lamp collection, previously 

 in storage, and a color television set, presented by the General Electric 

 Research Laboratory, were placed on exhibition in the Arts and In- 

 dustries Building. 



A change in the mechanism of the automatic quilt case was necessi- 

 tated by unexpectedly heavy use by visitors. The dial electronic sys- 

 tem of operation was replaced by a much simpler direct mechanical 

 means of selecting quilts. Temporary exhibits of large color photo- 

 graphs lent by the U.S. Soil Conservation Service were continued in 

 the farm machinery hall. 



The Kelmscott Chaucer^ a beautiful and important book printed by 



